No sooner had God led Moses and the Israelites out of Egypt and slavery, did they forsake Him and pursue idols. Moses told the people to prepare themselves to worship the Lord, and he himself went up the mountain to receive the Ten Commandments. Meanwhile, the people pestered Aaron the high priest and had him melt down their gold and form it into a golden calf.
Aaron proclaimed to the people, “Tomorrow is a feast of the Lord!” (Ex 32:5). And they proclaimed, “These are your gods, Israel, who brought you up from the land of Egypt!” (Ex 32:4).
The God who created them and liberated them was hardly enough for them. They also wanted a God they could control. They rejected Him, and refashioned Him in their own image and likeness.