What is the Catholic doctrine on the sinlessness of Jesus?
Both that He was without sin of any kind, and that He was absolutely incapable of sin. That necessarily follows from the Catholic doctrine that He was truly God, and could never cease to be God. 699. Was the temptation of Christ a matter of routine, or was Satan unaware that he was dealing with an impeccable nature? Satan was obviously unaware that Jesus was the very Son of God in human form. He would not have tempted Him had he known that. But he at least knew that God had endowed Him with supernatural power, that Jesus was perhaps the Messiah, and that he himself had all to fear if Jesus used this power according to God’s will. So he tried at least to induce Jesus to violate God’s will. The temptation was permitted, even though Christ was impeccable, not as a matter of mere routine, but for our instruction. We are taught that, no matter how holy we may be, we cannot expect to be free from temptation; and Christ gives us an example how to behave when actually tempted. Moreover, by und