Acts 7:41

And Aaron said unto them, Break off the golden earrings, which are in the ears of your wives, of your sons, and of your daughters, and bring them unto me. And all the people brake off the golden earrings which were in their ears, and brought them unto Aaron. And he received them at their hand, and fashioned it with a graving tool, after he had made it a molten calf: and they said, These be thy gods, O Israel, which brought thee up out of the land of Egypt. And when Aaron saw it, he built an altar before it; and Aaron made proclamation, and said, To morrow is a feast to the LORD. And they rose up early on the morrow, and offered burnt offerings, and brought peace offerings; and the people sat down to eat and to drink, and rose up to play. And the LORD said unto Moses, Go, get thee down; for thy people, which thou broughtest out of the land of Egypt, have corrupted themselves: They have turned aside quickly out of the way which I commanded them: they have made them a molten calf, and have worshipped it, and have sacrificed thereunto, and said, These be thy gods, O Israel, which have brought thee up out of the land of Egypt.

And the LORD said unto me, Arise, get thee down quickly from hence; for thy people which thou hast brought forth out of Egypt have corrupted themselves; they are quickly turned aside out of the way which I commanded them; they have made them a molten image. Furthermore the LORD spake unto me, saying, I have seen this people, and, behold, it is a stiffnecked people: Let me alone, that I may destroy them, and blot out their name from under heaven: and I will make of thee a nation mightier and greater than they. So I turned and came down from the mount, and the mount burned with fire: and the two tables of the covenant were in my two hands. And I looked, and, behold, ye had sinned against the LORD your God, and had made you a molten calf: ye had turned aside quickly out of the way which the LORD had commanded you. And I took the two tables, and cast them out of my two hands, and brake them before your eyes. And I fell down before the LORD, as at the first, forty days and forty nights: I did neither eat bread, nor drink water, because of all your sins which ye sinned, in doing wickedly in the sight of the LORD, to provoke him to anger.

Yea, when they had made them a molten calf, and said, This is thy God that brought thee up out of Egypt, and had wrought great provocations;

They made a calf in Horeb, and worshipped the molten image. Thus they changed their glory into the similitude of an ox that eateth grass. They forgat God their saviour, which had done great things in Egypt;