God makes two dispositions of sin: 1) If not forgiven, sin brings forth death to the sinner. This is justice. "The soul that sins shall die" (Ezekiel 18:20) and "the wages of sin is death" (Romans 6:23). 2) God can and does forgive sins. We cannot live above sin, and we cannot save ourselves, so we are entirely at the mercy of God for forgiveness. Christ died on the cross for our sins, and had He not done this, we would all be doomed to death, for no other person could have died for our sins. However, God has not provided salvation for any of us unconditionally. Salvation is conditional. Jesus said, "He who believes and is baptized will be saved; but he who does not believe will be condemned" (Mark 16:16). Why is it important that we are baptized into Christ? "Or do you not know that as many of us as were baptized into Christ Jesus were baptized into His death? Therefore we were buried with Him through baptism into death, that just as Christ was raised from the dead by the glory of the Father, even so we also should walk in newness of life" (Romans 6:3-4).
We should be so very thankful to our heavenly Father that He sent His only Son to die for us so that we can be saved. God did His part, we must do our part.