1. Christ, who took all of our sins. (Ex 29:10-11)
    Lev 1:4, 4:4, Isa 53:11, Jn 1:29-31, 2 Cor 5:21, Gal 1:4, 1 Pt 2:24

In the Old Testament, the priest placed his hands on the head of the burnt offering so that the burnt offering would bear the sins of the people of Israel, and the burnt offering would die. (Ex 29:10-11, Lev 1:4, Lev 4:4)

Ex 29:10 And thou shalt cause a bullock to be brought before the tabernacle of the congregation: and Aaron and his sons shall put their hands upon the head of the bullock.
11 And thou shalt kill the bullock before the Lord, by the door of the tabernacle of the congregation.

Lev 1:4 And he shall put his hand upon the head of the burnt offering; and it shall be accepted for him to make atonement for him.

Lev 4:4 And he shall bring the bullock unto the door of the tabernacle of the congregation before the Lord; and shall lay his hand upon the bullock’s head, and kill the bullock before the Lord.

The Old Testament prophesied that Christ would die to bear our sins. (Isa 53:11)

Isa 53:11 He shall see of the travail of his soul, and shall be satisfied: by his knowledge shall my righteous servant justify many; for he shall bear their iniquities.

Jesus is the Lamb of God who takes away the sin of the world. (John 1:29-31)

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.
30 This is he of whom I said, After me cometh a man which is preferred before me: for he was before me.
31 And I knew him not: but that he should be made manifest to Israel, therefore am I come baptizing with water.

God made the sinless Jesus sin to die for us. (2 Corinthians 5:21, Gal 1:4, 1 Peter 2:24)

2 Corinthians 5:21 For he hath made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him.

Gal 1:4 Who gave himself for our sins, that he might deliver us from this present evil world, according to the will of God and our Father:

1 Peter 2:24 Who his own self bare our sins in his own body on the tree, that we, being dead to sins, should live unto righteousness: by whose stripes ye were healed.