1 Peter 1:3
“Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead,”
If it was not for the sacrifice Jesus Christ made, we would not have the opportunity for Eternal Life.
“For it is not possible that the blood of bulls and of goats should take away sins,” (Hebrews 10:4).
The sin offerings found in the old testament could not truly take away sin, they were only a way to make the people feel some personal loss.
We needed a personal Savior and Jesus Christ was it. Sacrificing Himself, becoming our Passover Lamb, Christ paved the way for our redemption.
We go in-depth on this topic in this past Bible Q&A, I know you will enjoy it.