Golden calf stop until Moses had returned. The righteous separated themselves from the pagans. God informed Moses that he had tried the Israelites in his absence and that they had failed by worshipping the golden calf. Returning to the Israelites in great anger, Moses asked Aaron why he had not stopped the Israelites when he had seen them worshipping the golden calf. The Quran reports that Aaron stated that he did not act due to the fear that Moses would blame him for causing divisions among the Israelites. Moses realized his helplessness in the situation, and both prayed to God for forgiveness
Thou shalt not kill A number of sins were considered to be worthy of the death penalty including murder, incest, bearing false witness on a capital charge, adultery, idolatry, bestiality, human sacrifice to pagan gods, cursing a parent, fortune-telling, and other sins. For example, the Exodus narrative describes the people as having turned to idolatry with the golden calf while Moses was on the mountain receiving the law from God. When Moses came down, he commanded the Levites to take up the sword against their brothers and companions and neighbors. The Levites obeyed and killed about three thousand men who had sinned in worship