13 Death was the punishment of sins; in the Lord was the gift of mercy, not the punishment of sin. For the Lord had nothing on account of which He should justly die. He Himself says, “Behold, the prince of this world comes, and finds nothing in me.” Wherefore then dost Thou die? “But that all may know that I do the will of my Father, arise, let us go hence.” He had not in Himself any reason why He should die, and He died: you have such a reason, and do you refuse to die? Do not refuse to bear with an equal mind your desert, when He did not refuse to suffer, to deliver you from eternal death. A man and a man; but the one nothing but man, the other God-man. The one a man of sin, the other of righteousness. You died in Adam, rise in Christ; for both are due to you. Now you have believed in Christ, render nevertheless that which you owe through Adam. But the chain of sin shall not hold you eternally; because the temporal death of your Lord slew your eternal death. The same is grace, my brethren, the same is truth, because promised and manifested.
Source: Tractates on the Gospel of John (New Advent)