And immediately he preached Christ in the synagogues, that he is the Son of God.
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Irenaeus of Lyons
AD 202
Paul himself also-after that the Lord spoke to him out of heaven, and showed him that, in persecuting His disciples, he persecuted his own Lord, and sent Ananias to him that he might recover his sight, and be baptized-"preached "it is said, "Jesus in the synagogues at Damascus, with all freedom of speech, that this is the Son of God, the Christ."
not that He is risen— not this: no, nor that He lives: but what? Immediately he strictly expounded the doctrine— that this is the Son of God. And all that heard him were amazed, etc.
See, straightway he was a teacher in the synagogues. He was not ashamed of the change, was not afraid while the very things in which he was glorious afore-time, the same he destroyed. Even from his first appearance on the stage here was a man, death-dealing, ready for deeds of blood: do you see what a manifest sign (was here)? And with this very thing, he put all in fear: for, said they, Hither also is he come for this very thing. But all that heard him were amazed, and said: Is not this he that destroyed them which called on this name in Jerusalem, and came hither for that intent, that he might bring them bound unto the chief priests? But Saul increased the more in strength, and confounded the Jews which dwelt at Damascus, proving that this is very Christ.