Christ came to do…

Make a new covenant.

Matthew 26:28 

For this is my blood of the new testament, which is shed for many for the remission of sins.

Hebrews 8:6 

But now hath he obtained a more excellent ministry, by how much also he is the mediator of a better covenant, which was established upon better promises.

Hebrews 9:15 

And for this cause he is the mediator of the New Testament that by means of death, for the redemption of the transgressions that were under the first testament, they which are called might receive the promise of eternal inheritance.

Put away sin.

Hebrews 9:26 

For then must he often have suffered since the foundation of the world: but now once in the end of the world hath he appeared to put away sin by the sacrifice of himself.

Suffer for men.

John 12:27 

Now is my soul troubled; and what shall I say? Father, save me from this hour: but for this cause came I unto this hour.

1 Peter 3:18 

For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God, being put to death in the flesh, but quickened by the Spirit: