Idolatry: Consists in Worshipping the True God by an Image
Source: TTT
Exodus 32:4–6
He took the gold from their hands, and with an engraving tool he fashioned it into a molten calf. And they said, “These, O Israel, are your gods, who brought you up out of the land of Egypt!” / When Aaron saw this, he built an altar before the calf and proclaimed: “Tomorrow shall be a feast to the LORD.” / So the next day they arose, offered burnt offerings, and presented peace offerings. And the people sat down to eat and drink, and got up to indulge in revelry.
Psalm 106:19, 20
At Horeb they made a calf and worshiped a molten image. / They exchanged their Glory for the image of a grass-eating ox.