Aaron's Golden Calf
And Jethro, seeing how Moses was overburdened with the care of so many people, advised him to appoint officers over them, under himself, who might attend to all their smaller concerns.

But God Himself had the chief government of the people; and on Mount Sinai, where Moses spoke to Him and saw His great glory, He gave to them, not only the Ten Commandments, but many other laws and directions, for all they should do in worshiping Him.

While Moses receives the Ten Commandments on Mount Sinai, his people lose faith in their god. Although forbidden, Moses' brother Aaron casts a golden calf, an idol, and the people sing and dance around it.

Moses was forty days in the mount, and the people began to wonder what had become of him.

So they asked Aaron to make them some images which they might worship, and that might guide them out of the wilderness. Aaron knew there was only one God, yet he did as the people desired.

He bade them bring their golden ornaments to him; and then he melted them, shaped the metal into the form of a calf (one of the false gods of the Egyptians), built an altar before it, on which the people might lay their offerings, and told them that was their god that had brought them out of the land of Egypt.

But God saw this; and He was so displeased at their wickedness that He would have destroyed them all, had not Moses interceded for them. Then Moses came down from the mount to the camp, and asked Aaron how it was that he and the people had committed so great a sin.

Aaron tried to excuse himself by laying the blame on the unruly Israelites. But there was no excuse for him.