A partial set of the Scriptures used:
 

Many fall pray to the craftiness of those peddling their own ideas, looking for a following or support...

" Between the two evenings " ... is a fulcrum of the controversy.  Jews think it is between noon and sunset.

At TWILIGHT... between sunset and darkness

Exo 3:19  But I am sure that the king of Egypt will not let you go, no, not even by a mighty hand.
Exo 3:20  So I will stretch out My hand and strike Egypt with all My wonders which I will do in its midst; and after that he will let you go.
Exo 3:21  And I will give this people favor in the sight of the Egyptians; and it shall be, when you go, that you shall not go empty-handed.
Exo 3:22  But every woman shall ask of her neighbor, namely, of her who dwells near her house, articles of silver, articles of gold, and clothing; and you shall put them on your sons and on your daughters. So you shall plunder the Egyptians."

Exo 10:24  Then Pharaoh called to Moses and said, "Go, serve the LORD; only let your flocks and your herds be kept back. Let your little ones also go with you."
Exo 10:25  But Moses said, "You must also give us sacrifices and burnt offerings, that we may sacrifice to the LORD our God.
Exo 10:26  Our livestock also shall go with us; not a hoof shall be left behind. For we must take some of them to serve the LORD our God, and even we do not know with what we must serve the LORD until we arrive there."
Exo 10:27  But the LORD hardened Pharaoh's heart, and he would not let them go.

Exo 10:28  Then Pharaoh said to him, "Get away from me! Take heed to yourself and see my face no more! For in the day you see my face you shall die!"
Exo 10:29  So Moses said, "You have spoken well. I will never see your face again."
Exo 11:4  Then Moses said, "Thus says the LORD: 'About midnight I will go out into the midst of Egypt;
Exo 11:5  and all the firstborn in the land of Egypt shall die, from the firstborn of Pharaoh who sits on his throne, even to the firstborn of the female servant who is behind the handmill, and all the firstborn of the animals.
Exo 11:6  Then there shall be a great cry throughout all the land of Egypt, such as was not like it before, nor shall be like it again.
Exo 11:7  But against none of the children of Israel shall a dog move its tongue, against man or beast, that you may know that the LORD does make a difference between the Egyptians and Israel.'

Exo 11:1  And the LORD said to Moses, "I will bring one more plague on Pharaoh and on Egypt. Afterward, he will let you go from here. When he lets you go, he will surely drive you out of here altogether.
Exo 11:2  Speak now in the hearing of the people, and let every man ask from his neighbor and every woman from her neighbor, articles of silver and articles of gold."
Exo 11:3  And the LORD gave the people favor in the sight of the Egyptians. Moreover, the man Moses was very great in the land of Egypt, in the sight of Pharaoh's servants and in the sight of the people.
Exo 11:4  Then Moses said, "Thus says the LORD: 'About midnight I will go out into the midst of Egypt;
Exo 11:5  and all the firstborn in the land of Egypt shall die, from the firstborn of Pharaoh who sits on his throne, even to the firstborn of the female servant who is behind the handmill, and all the firstborn of the animals.
Exo 11:6  Then there shall be a great cry throughout all the land of Egypt, such as was not like it before, nor shall be like it again.
Exo 11:7  But against none of the children of Israel shall a dog move its tongue, against man or beast, that you may know that the LORD does make a difference between the Egyptians and Israel.'
Exo 12:1  Now the LORD spoke to Moses and Aaron in the land of Egypt, saying,
Exo 12:2  "This month shall be your beginning of months; it shall be the first month of the year to you.
Exo 12:3  Speak to all the congregation of Israel, saying: 'On the tenth of this month every man shall take for himself a lamb, according to the house of his father, a lamb for a household.
Exo 12:4  And if the household is too small for the lamb, let him and his neighbor next to his house take it according to the number of the persons; according to each man's need you shall make your count for the lamb.
Exo 12:5  Your lamb shall be without blemish, a male of the first year. You may take it from the sheep or from the goats.
Exo 12:6  Now you shall keep it until the fourteenth day of the same month. Then the whole assembly of the congregation of Israel shall kill it at twilight.

SUNSET to sunset... when the SUN goes down the day ends and TWILIGHT begins...
Exo 12:7  And they shall take some of the blood and put it on the two doorposts and on the lintel of the houses where they eat it.
Exo 12:8  Then they shall eat the flesh on that night; roasted in fire, with unleavened bread and with bitter herbs they shall eat it.
Exo 12:9  Do not eat it raw, nor boiled at all with water, but roasted in fire—its head with its legs and its entrails.
Exo 12:10  You shall let none of it remain until morning, and what remains of it until morning you shall burn with fire.
Exo 12:11  And thus you shall eat it: with a belt on your waist, your sandals on your feet, and your staff in your hand. So you shall eat it in haste. It is the LORD's Passover.
Exo 12:12  'For I will pass through the land of Egypt on that night, and will strike 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.
Exo 12:13  Now the blood shall be a sign for you on the houses where you are. And when I see the blood, I will pass over you; and the plague shall not be on you to destroy you when I strike the land of Egypt.
Exo 12:14  'So this day shall be to you a memorial; and you shall keep it as a feast to the LORD throughout your generations. You shall keep it as a feast by an everlasting ordinance.

MEMORIAL is ONCE per YEAR... NOT monthly or whenever we decide we would like to do it....

They could NOT have gone out on the 14th due to the death angel... They plundered the Egyptians... and left the NIGHT of the 15th under that bright FULL MOON.!!!!

Only circumcised could take the Passover. In our time only baptized members can participate in the emblems... the circumcised in "the heart" ...

29 times PASSOVER is mentioned in the NT.  The NT Church referred to this event it was the PASSOVER, not some other designation!

Luk 22:11  Then you shall say to the master of the house, 'The Teacher says to you, "Where is the guest room where I may eat the Passover with My disciples?" '
Luk 22:12  Then he will show you a large, furnished upper room; there make ready."
Luk 22:13  So they went and found it just as He had said to them, and they prepared the Passover.
Luk 22:14  When the hour had come, He sat down, and the twelve apostles with Him.

REALIZE that the NT Passover did NOT include the killing of a lamb for THAT purpose, though lamb might have been eaten before.

Joh 13:1  Now before the Feast of the Passover, when Jesus knew that His hour had come that He should depart from this world to the Father, having loved His own who were in the world, He loved them to the end.
Joh 13:2  And supper being ended, the devil having already put it into the heart of Judas Iscariot, Simon's son, to betray Him,
During supper these things begin to happen.

Joh 13:12  So when He had washed their feet, taken His garments, and sat down again, He said to them, "Do you know what I have done to you?
Joh 13:13  You call Me Teacher and Lord, and you say well, for so I am.
Joh 13:14  If I then, your Lord and Teacher, have washed your feet, you also ought to wash one another's feet.
Joh 13:15  For I have given you an example, that you should do as I have done to you.
Joh 13:16  Most assuredly, I say to you, a servant is not greater than his master; nor is he who is sent greater than he who sent him.
Joh 13:17  If you know these things, blessed are you if you do them.
Joh 13:18  "I do not speak concerning all of you. I know whom I have chosen; but that the Scripture may be fulfilled, 'HE WHO EATS BREAD WITH ME HAS LIFTED UP HIS HEEL AGAINST ME.'
Joh 13:19  Now I tell you before it comes, that when it does come to pass, you may believe that I am He.
Joh 13:20  Most assuredly, I say to you, he who receives whomever I send receives Me; and he who receives Me receives Him who sent Me."
Joh 13:21  When Jesus had said these things, He was troubled in spirit, and testified and said, "Most assuredly, I say to you, one of you will betray Me."
Joh 13:26  Jesus answered, "It is he to whom I shall give a piece of bread when I have dipped it." And having dipped the bread, He gave it to Judas Iscariot, the son of Simon.
Joh 13:26  Jesus answered, "It is he to whom I shall give a piece of bread when I have dipped it." And having dipped the bread, He gave it to Judas Iscariot, the son of Simon.
Joh 13:27  Now after the piece of bread, Satan entered him. Then Jesus said to him, "What you do, do quickly."
Joh 13:29  For some thought, because Judas had the money box, that Jesus had said to him, "Buy those things we need for the feast," or that he should give something to the poor.
Joh 13:30  Having received the piece of bread, he then went out immediately. And it was night.

Judas NOT present for the emblems. ONLY the foot washing.

The supper was completed BEFORE THE PASSOVER was instituted.  Footwashing was followed by the NT emblems of the Passover, unleavened bread and wine and so became a part of the Entire Ceremony.

1Co 11:1  Imitate me, just as I also imitate Christ.
That is, FOLLOW my example and instructions on how and when to do this...
Christ LONGED to eat the PASSOVER with them, NOT the " Lord's supper" !!!!

1Co 11:18  For first of all, when you come together as a church, I hear that there are divisions among you, and in part I believe it.
1Co 11:19  For there must also be factions among you, that those who are approved may be recognized among you.
1Co 11:20  Therefore when you come together in one place, it is not to eat the Lord's Supper.
1Co 11:21  For in eating, each one takes his own supper ahead of others; and one is hungry and another is drunk.
1Co 11:22  What! Do you not have houses to eat and drink in? Or do you despise the church of God and shame those who have nothing? What shall I say to you? Shall I praise you in this? I do not praise you.
1Co 11:23  For I received from the Lord that which I also delivered to you: that the Lord Jesus on the same night in which He was betrayed took bread;
1Co 11:24  and when He had given thanks, He broke it and said, "Take, eat; this is My body which is broken for you; do this in remembrance of Me."
1Co 11:25  In the same manner, He also took the cup after supper, saying, "This cup is the new covenant in My blood. This do, as often as you drink it, in remembrance of Me."
1Co 11:26  For as often as you eat this bread and drink this cup, you proclaim the Lord's death till He comes.
1Co 11:27  Therefore whoever eats this bread or drinks this cup of the Lord in an unworthy manner will be guilty of the body and blood of the Lord.

Annual Memorial, not when we want to. HE is coming back as THE LION OF THE TRIBE OF JUDAH!!!

The Passover IS the emblems, NOT the dinner/supper before it. !!!

Be aware of Satan's deception in this world where Satan is working overtime to deceive and divide.

"Except you eat the flesh of the Son of Man" ...