substitute (1 cor 15:3)

1 Cor 15:3

For I delivered to you of first importance what I also received: that Christ died for our sins in accordance with the scriptures.

Jesus died FOR OUR sins. Substitution is the heart of the gospel. He took our place. He lived the life we failed to live. He died the death we should have died. He took our sin. He gives us His righteousness. It is the great exchange. This is not some generalised "he died for the sin of humanity" thing, but deeply personal. He died for MY sins. What a Saviour!