Passover commemorates the deliverance of the Israelites from bondage in Egypt and displays how The Most High brought his righteous indignation down on Egypt and their gods utterly obliterating them. As the destroyer (the angel of death) "Passed over" Egypt and slaughtered the firstborn of Egypt. It also illustrates how the Israelites were kept safe.

Exodus 12  KJVA

12 And the Lord spake unto Moses and Aaron in the land of Egypt saying, ² This month shall be unto you the beginning of months: it shall be the first month of the year to you. ³ Speak ye unto all the congregation of Israel, saying, In the tenth day of this month they shall take to them every man a lamb, according to the house of their fathers, a lamb for an house:

 ⁴ And if the household be too little for the lamb, let him and his neighbour next unto his house take it according to the number of the souls; every man according to his eating shall make your count for the lamb. ⁵ Your lamb shall be without blemish, a male of the first year: ye shall take it out from the sheep, or from the goats:

 ⁶ And ye shall keep it up until the fourteenth day of the same month: and the whole assembly of the congregation of Israel shall kill it in the evening. ⁷ And they shall take of the blood, and strike it on the two side posts and on the upper door post of the houses, wherein they shall eat it. ⁸ And they shall eat the flesh in that night, roast with fire, and unleavened bread; and with bitter herbs they shall eat it.

 ⁹ Eat not of it raw, nor sodden at all with water, but roast with fire; his head with his legs, and with the purtenance thereof. ¹⁰ And ye shall let nothing of it remain until the morning; and that which remaineth of it until the morning ye shall burn with fire. ¹¹ And thus shall ye eat it; with your loins girded, your shoes on your feet, and your staff in your hand; and ye shall eat it in haste: it is the Lord's passover. 

¹² For I will pass through the land of Egypt this night, and will smite all the firstborn in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgment: I am the Lord. ¹³ And the blood shall be to you for a token upon the houses where ye are: and when I see the blood, I will pass over you, and the plague shall not be upon you to destroy you, when I smite the land of Egypt. ¹⁴ And this day shall be unto you for a memorial; and ye shall keep it a feast to the Lord throughout your generations; ye shall keep it a feast by an ordinance for ever. ¹⁵ Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel. ¹⁶ And in the first day there shall be an holy convocation, and in the seventh day there shall be an holy convocation to you; no manner of work shall be done in them, save that which every man must eat, that only may be done of you.

 ¹⁷ And ye shall observe the feast of unleavened bread; for in this selfsame day have I brought your armies out of the land of Egypt: therefore shall ye observe this day in your generations by an ordinance for ever. ¹⁸ In the first month, on the fourteenth day of the month at even, ye shall eat unleavened bread, until the one and twentieth day of the month at even.

 ¹⁹ Seven days shall there be no leaven found in your houses: for whosoever eateth that which is leavened, even that soul shall be cut off from the congregation of Israel, whether he be a stranger, or born in the land.

 ²⁰ Ye shall eat nothing leavened; in all your habitations shall ye eat unleavened bread. ²¹ Then Moses called for all the elders of Israel, and said unto them, Draw out and take you a lamb according to your families, and kill the passover.

 ²² And ye shall take a bunch of hyssop, and dip it in the blood that is in the bason, and strike the lintel and the two side posts with the blood that is in the bason; and none of you shall go out at the door of his house until the morning. 

²³ For the Lord will pass through to smite the Egyptians; and when he seeth the blood upon the lintel, and on the two side posts, the Lord will pass over the door, and will not suffer the destroyer to come in unto your houses to smite you. ²⁴ And ye shall observe this thing for an ordinance to thee and to thy sons for ever. ²⁵ And it shall come to pass, when ye be come to the land which the Lord will give you, according as he hath promised, that ye shall keep this service. 

²⁶ And it shall come to pass, when your children shall say unto you, What mean ye by this service? ²⁷ That ye shall say, It is the sacrifice of the Lord's passover, who passed over the houses of the children of Israel in Egypt, when he smote the Egyptians, and delivered our houses. And the people bowed the head and worshipped. ²⁸ And the children of Israel went away, and did as the Lord had commanded Moses and Aaron, so did they.

 ²⁹ And it came to pass, that at midnight the Lord smote all the firstborn in the land of Egypt, from the firstborn of Pharaoh that sat on his throne unto the firstborn of the captive that was in the dungeon; and all the firstborn of cattle. ³⁰ And Pharaoh rose up in the night, he, and all his servants, and all the Egyptians; and there was a great cry in Egypt; for there was not a house where there was not one dead. 

³¹ And he called for Moses and Aaron by night, and said, Rise up, and get you forth from among my people, both ye and the children of Israel; and go, serve the Lord, as ye have said. ³² Also take your flocks and your herds, as ye have said, and be gone; and bless me also. ³³ And the Egyptians were urgent upon the people, that they might send them out of the land in haste; for they said, We be all dead men.

 ³⁴ And the people took their dough before it was leavened, their kneadingtroughs being bound up in their clothes upon their shoulders. ³⁵ And the children of Israel did according to the word of Moses; and they borrowed of the Egyptians jewels of silver, and jewels of gold, and raiment: 

³⁶ And the Lord gave the people favour in the sight of the Egyptians, so that they lent unto them such things as they required. And they spoiled the Egyptians. ³⁷ And the children of Israel journeyed from Rameses to Succoth, about six hundred thousand on foot that were men, beside children. ³⁸ And a mixed multitude went up also with them; and flocks, and herds, even very much cattle.

 ³⁹ And they baked unleavened cakes of the dough which they brought forth out of Egypt, for it was not leavened; because they were thrust out of Egypt, and could not tarry, neither had they prepared for themselves any victual. 

⁴⁰ Now the sojourning of the children of Israel, who dwelt in Egypt, was four hundred and thirty years. ⁴¹ And it came to pass at the end of the four hundred and thirty years, even the selfsame day it came to pass, that all the hosts of the Lord went out from the land of Egypt. ⁴² It is a night to be much observed unto the Lord for bringing them out from the land of Egypt: this is that night of the Lord to be observed of all the children of Israel in their generations. 

⁴³ And the Lord said unto Moses and Aaron, This is the ordinance of the passover: There shall no stranger eat thereof: ⁴⁴ But every man's servant that is bought for money, when thou hast circumcised him, then shall he eat thereof. ⁴⁵ A foreigner and an hired servant shall not eat thereof. ⁴⁶ In one house shall it be eaten; thou shalt not carry forth ought of the flesh abroad out of the house; neither shall ye break a bone thereof. ⁴⁷ All the congregation of Israel shall keep it. ⁴⁸ And when a stranger shall sojourn with thee, and will keep the passover to the Lord, let all his males be circumcised, and then let him come near and keep it; and he shall be as one that is born in the land: for no uncircumcised person shall eat thereof. ⁴⁹ One law shall be to him that is homeborn, and unto the stranger that sojourneth among you. ⁵⁰ Thus did all the children of Israel; as the Lord commanded Moses and Aaron, so did they. ⁵¹ And it came to pass the selfsame day, that the Lord did bring the children of Israel out of the land of Egypt by their armies. 

Leviticus 23:5-8  In the fourteenth day of the first month at even is the Lord's passover.⁶ And on the fifteenth day of the same month is the feast of unleavened bread unto the Lord: seven days ye must eat unleavened bread.⁷ In the first day ye shall have an holy convocation: ye shall do no servile work therein.⁸ But ye shall offer an offering made by fire unto the Lord seven days: in the seventh day is an holy convocation: ye shall do no servile work therein.

Deuteronomy 16:1-8 Observe the month of Abib, and keep the passover unto the Lord thy God: for in the month of Abib the Lord thy God brought thee forth out of Egypt by night.² Thou shalt therefore sacrifice the passover unto the Lord thy God, of the flock and the herd, in the place which the Lord shall choose to place his name there.³ Thou shalt eat no leavened bread with it; seven days shalt thou eat unleavened bread therewith, even the bread of affliction; for thou camest forth out of the land of Egypt in haste: that thou mayest remember the day when thou camest forth out of the land of Egypt all the days of thy life.⁴ And there shall be no leavened bread seen with thee in all thy coast seven days; neither shall there any thing of the flesh, which thou sacrificedst the first day at even, remain all night until the morning.⁵ Thou mayest not sacrifice the passover within any of thy gates, which the Lord thy God giveth thee:⁶ But at the place which the Lord thy God shall choose to place his name in, there thou shalt sacrifice the passover at even, at the going down of the sun, at the season that thou camest forth out of Egypt.⁷ And thou shalt roast and eat it in the place which the Lord thy God shall choose: and thou shalt turn in the morning, and go unto thy tents.⁸ Six days thou shalt eat unleavened bread: and on the seventh day shall be a solemn assembly to the Lord thy God: thou shalt do no work therein. 

Deuteronomy 16:16 Three times in a year shall all thy males appear before the Lord thy God in the place which he shall choose; in the feast of unleavened bread, and in the feast of weeks, and in the feast of tabernacles: and they shall not appear before the Lord empty: 

Leviticus 23:5 In the fourteenth day of the first month at even is the Lord's passover. 

Luke 22:1 Now the feast of unleavened bread drew nigh, which is called the Passover. 

1 Corinthians 5:7-8 Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us: ⁸ Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.

Numbers 9:1-23 And the Lord spake unto Moses in the wilderness of Sinai, in the first month of the second year after they were come out of the land of Egypt, saying, ² Let the children of Israel also keep the passover at his appointed season. ³ In the fourteenth day of this month, at even, ye shall keep it in his appointed season: according to all the rites of it, and according to all the ceremonies thereof, shall ye keep it. ⁴ And Moses spake unto the children of Israel, that they should keep the passover. ⁵ And they kept the passover on the fourteenth day of the first month at even in the wilderness of Sinai: according to all that the Lord commanded Moses, so did the children of Israel. ⁶ And there were certain men, who were defiled by the dead body of a man, that they could not keep the passover on that day: and they came before Moses and before Aaron on that day: ⁷ And those men said unto him, We are defiled by the dead body of a man: wherefore are we kept back, that we may not offer an offering of the Lord in his appointed season among the children of Israel? ⁸ And Moses said unto them, Stand still, and I will hear what the Lord will command concerning you. ⁹ And the Lord spake unto Moses, saying, ¹⁰ Speak unto the children of Israel, saying, If any man of you or of your posterity shall be unclean by reason of a dead body, or be in a journey afar off, yet he shall keep the passover unto the Lord. ¹¹ The fourteenth day of the second month at even they shall keep it, and eat it with unleavened bread and bitter herbs. ¹² They shall leave none of it unto the morning, nor break any bone of it: according to all the ordinances of the passover they shall keep it. ¹³ But the man that is clean, and is not in a journey, and forbeareth to keep the passover, even the same soul shall be cut off from among his people: because he brought not the offering of the Lord in his appointed season, that man shall bear his sin. ¹⁴ And if a stranger shall sojourn among you, and will keep the passover unto the Lord; according to the ordinance of the passover, and according to the manner thereof, so shall he do: ye shall have one ordinance, both for the stranger, and for him that was born in the land. ¹⁵ And on the day that the tabernacle was reared up the cloud covered the tabernacle, namely, the tent of the testimony: and at even there was upon the tabernacle as it were the appearance of fire, until the morning. ¹⁶ So it was alway: the cloud covered it by day, and the appearance of fire by night. ¹⁷ And when the cloud was taken up from the tabernacle, then after that the children of Israel journeyed: and in the place where the cloud abode, there the children of Israel pitched their tents. ¹⁸ At the commandment of the Lord the children of Israel journeyed, and at the commandment of the Lord they pitched: as long as the cloud abode upon the tabernacle they rested in their tents. ¹⁹ And when the cloud tarried long upon the tabernacle many days, then the children of Israel kept the charge of the Lord, and journeyed not. ²⁰ And so it was, when the cloud was a few days upon the tabernacle; according to the commandment of the Lord they abode in their tents, and according to the commandment of the Lord they journeyed. ²¹ And so it was, when the cloud abode from even unto the morning, and that the cloud was taken up in the morning, then they journeyed: whether it was by day or by night that the cloud was taken up, they journeyed. ²² Or whether it were two days, or a month, or a year, that the cloud tarried upon the tabernacle, remaining thereon, the children of Israel abode in their tents, and journeyed not: but when it was taken up, they journeyed. ²³ At the commandment of the Lord they rested in the tents, and at the commandment of the Lord they journeyed: they kept the charge of the Lord, at the commandment of the Lord by the hand of Moses. 

INSTRUCTIONS TO KEEP IT HOLY:- 

Remove leaven from your homes for the duration of the feast (Yeast, Bakers Yeast, Baking soda, baking powder, Malt, self rising flour, wine and anything that contains leaven). 

See a list of leavening agents https://truetoisrael.blogspot.com/2012/03/leaven-and-leavening-agents.html

Bitter Herbs- Exodus 12: 5 (Lettuce, Moringa, Corili, Kale) 

Unleavened Bread must be eaten for the duration of the feast 

Wine-Exodus 12:8 and Matthew 26:26-29 

Lamb-Exodus 12:9 

Roast with fire-Exodus 12:46-47 

HOW TO OBSERVE

Psalm 81: 3 Blow up the trumpet in the new moon, in the time appointed, on our solemn feast day. 

Judges 5:11 They that are delivered from the noise of archers in the places of drawing water, there shall they rehearse the righteous acts of the Lord, even the righteous acts toward the inhabitants of his villages in Israel: then shall the people of the Lord go down to the gates. 

NO WORKING

Exodus 20:9-11 Six days shalt thou labour, and do all thy work: ¹⁰ But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates: ¹¹ For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it. 

Deuteronomy 5:14 But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, nor thy manservant, nor thy maidservant, nor thine ox, nor thine ass, nor any of thy cattle, nor thy stranger that is within thy gates; that thy manservant and thy maidservant may rest as well as thou.

NO BUYING/SELLING 

Nehemiah 10:31 And if the people of the land bring ware or any victuals on the sabbath day to sell, that we would not buy it of them on the sabbath, or on the holy day: and that we would leave the seventh year, and the exaction of every debt.
Nehemiah 13:15-21 In those days saw I in Judah some treading wine presses on the sabbath, and bringing in sheaves, and lading asses; as also wine, grapes, and figs, and all manner of burdens, which they brought into Jerusalem on the sabbath day: and I testified against them in the day wherein they sold victuals. ¹⁶ There dwelt men of Tyre also therein, which brought fish, and all manner of ware, and sold on the sabbath unto the children of Judah, and in Jerusalem. ¹⁷ Then I contended with the nobles of Judah, and said unto them, What evil thing is this that ye do, and profane the sabbath day? ¹⁸ Did not your fathers thus, and did not our God bring all this evil upon us, and upon this city? yet ye bring more wrath upon Israel by profaning the sabbath. ¹⁹ And it came to pass, that when the gates of Jerusalem began to be dark before the sabbath, I commanded that the gates should be shut, and charged that they should not be opened till after the sabbath: and some of my servants set I at the gates, that there should no burden be brought in on the sabbath day. ²⁰ So the merchants and sellers of all kind of ware lodged without Jerusalem once or twice. ²¹ Then I testified against them, and said unto them, Why lodge ye about the wall? if ye do so again, I will lay hands on you. From that time forth came they no more on the sabbath. 

NO CARRYING BURDENS

Jeremiah 17:21 Thus saith the Lord; Take heed to yourselves, and bear no burden on the sabbath day, nor bring it in by the gates of Jerusalem; 

NO DOING YOUR OWN PLEASURE: NO SEX/PLAYING GAME/WATCHING FOOTBALL ETC 

Isaiah 58:13-14 If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the Lord, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: ¹⁴ Then shalt thou delight thyself in the Lord; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the Lord hath spoken it. 

CONGREGATING 

Leviticus 23:3 Six days shall work be done: but the seventh day is the sabbath of rest, an holy convocation; ye shall do no work therein: it is the sabbath of the Lord in all your dwellings. 

RESTING 

Exodus 31:15-17 Six days may work be done; but in the seventh is the sabbath of rest, holy to the Lord: whosoever doeth any work in the sabbath day, he shall surely be put to death. ¹⁶ Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant. ¹⁷ It is a sign between me and the children of Israel for ever: for in six days the Lord made heaven and earth, and on the seventh day he rested, and was refreshed. Exodus 35: 2 Six days shall work be done, but on the seventh day there shall be to you an holy day, a sabbath of rest to the Lord: whosoever doeth work therein shall be put to death. 

WITH GLADNESS 

Numbers 10:10 Also in the day of your gladness, and in your solemn days, and in the beginnings of your months, ye shall blow with the trumpets over your burnt offerings, and over the sacrifices of your peace offerings; that they may be to you for a memorial before your God: I am the Lord your God