Forasmuch then as we are the offspring of God, we ought not to think that the Godhead is like unto gold, or silver, or stone, graven by art and man’s device.
29. Therefore seeing that. He gathereth that God cannot be figured or resembled by any graven image forasmuch as he would have his image extant in us. For the soul wherein the image of God is properly engraven cannot be painted; therefore it is a thing more absurd to go about to paint God.
Paul's task here differs entirely from his preaching to Jews: they needed Christ proved by prophecy; these refined idolaters needed first to know there is one true Creator and God alone worthy of worship. He had to lay the foundation before he could build.
AI summary
Commenting on Acts 17:22-31
Forasmuch then as we are the offspring of God,.... In the sense before given; for the apostle is not here speaking of himself, and other saints, as being the children of God, by adoption, and by regenerating grace, and faith in Christ Jesus, but as men in common with others, and with these Athenians: we ought not to think that the Godhead is like unto...