1 John 3:5

On the next day, he *saw Jesus coming to him and *said, “Behold, the Lamb of God who takes away the sin of the world!

He made Him who knew no sin to be sin on our behalf, so that we might become the righteousness of God in Him.

And by common confession, great is the mystery of godliness: He who was manifested in the flesh, Was vindicated in the Spirit, Seen by angels, Proclaimed among the nations, Believed on in the world, Taken up in glory.

Otherwise, He would have needed to suffer often since the foundation of the world; but now once at the consummation of the ages He has been manifested to put away sin by the sacrifice of Himself.

and the life was manifested, and we have seen and bear witness and proclaim to you the eternal life, which was with the Father and was manifested to us—

The one who does sin is of the devil, because the devil sins from the beginning. The Son of God was manifested for this purpose, to destroy the works of the devil.