Exodus 32:20-23

20Then he took the calf that they had made, burned it with fire, ground it to powder, scattered it on the surface of the water and made Bnei-Yisrael drink it.

21Then Moses said to Aaron, “What did this people do to you, to make you bring such a great sin upon them?”

22Aaron said, “Don’t be angry, my lord! You know these people yourself, and how they are set on evil.

23They said to me, ‘Make gods for us, to go before us! As for this Moses, the man that brought us up out of the land of Egypt, we don’t know what happened to him.’