God spoke to Moses and delivered the Ten Commandments. The first commandment establishes that the Israelites must have no other gods before God, who freed them from slavery in Egypt. This commandment is followed by prohibitions against idolatry and taking God's name in vain, as well as requirements to observe the Sabbath and honor one's parents. The commandments lay out moral laws against murder, adultery, theft, false witness, and coveting.