1. Christ became the Passover Lamb (Lev 23:5)
    Ex 12:11, Jn 1:29, 1 Pt 1:19, Isa 53:6-7, 10, 1 Cor 5:7, Rev 5:6,9, Rev 7:14, Jn 6:53-54, Heb 10:10

In the Old Testament, God made the Israelites keep the Passover. (Lev 23:5, Ex 12:11)

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

Ex 12:11 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.

In the Old Testament, it was foretold that the coming Christ would die like the Lamb as a trespass offering. (Isa 53:6-7,10)

Isa 53:6 All we like sheep have gone astray; we have turned every one to his own way; and the Lord hath laid on him the iniquity of us all.
7 He was oppressed, and he was afflicted, yet he opened not his mouth: he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he openeth not his mouth.
10 Yet it pleased the Lord to bruise him; he hath put him to grief: when thou shalt make his soul an offering for sin, he shall see his seed, he shall prolong his days, and the pleasure of the Lord shall prosper in his hand.

Jesus is the Passover Lamb of God. (John 1:29, 1 Pet 1:19)

John 1:29 The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.

1 Pet 1:19 But with the precious blood of Christ, as of a lamb without blemish and without spot:

Jesus, the Christ, was slain like the Passover Lamb in order to save us. (1 Corinthians 5:7, Hebrews 10:10, Revelation 5:6,9, Revelation 7:14)

1 Corinthians 5:7 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:

Hebrews 10:10 By the which will we are sanctified through the offering of the body of Jesus Christ once for all.

Revelation 5:6 And I beheld, and, lo, in the midst of the throne and of the four beasts, and in the midst of the elders, stood a Lamb as it had been slain, having seven horns and seven eyes, which are the seven Spirits of God sent forth into all the earth.
9 And they sung a new song, saying, Thou art worthy to take the book, and to open the seals thereof: for thou wast slain, and hast redeemed us to God by thy blood out of every kindred, and tongue, and people, and nation;

Revelation 7:14 And I said unto him, Sir, thou knowest. And he said to me, These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb.

We must believe in Jesus as the Christ and get to know him every day. (John 6:53-54)

John 6:53 Then Jesus said unto them, Verily, verily, I say unto you, Except ye eat the flesh of the Son of man, and drink his blood, ye have no life in you.
54 Whoso eateth my flesh, and drinketh my blood, hath eternal life; and I will raise him up at the last day.