But God, being loving, compassionate, and merciful, chooses to save a people for himself out of the fallen and wicked human race. Jesus Christ came into the world as the second Adam. God the Son became incarnate in order to obey God's law perfectly, and to offer himself as a blood sacrifice for his elect. Because God is righteous and holy, he can not simply overlook or disregard transgressions against His law. All sin deserves eternal separation from God.
All sin brings the curse of the law, spiritual death, and the torment of hell.
The only way that sinners can receive forgiveness of sins is if a substitute stands in the sinners' place and takes the wrath that sinners deserve. Jesus, the divine-human Messiah, is the only person who ever lived who could provide substitutionary atonement for sinners. Because Jesus is the only person who ever lived whom never committed sin. Jesus Christ is the perfect and only mediator between a righteous God and sinful men. Jesus Christ by his sacrificial death turned aside the wrath of God from sinners.