The Israelites were slaves in Egypt for many long hard years. God sent Moses to free them. Moses led his people out of Egypt into the wilderness. After so many years of slavery, the people needed a set of rules to live by. God called Moses up to the top of Mount Sinai. There, God gave Moses ten laws.
"Have no other gods except me," the Lord said, "Do not make idols. Do not use my name carelessly. Keep the Sabbath a holy day. Obey your parents. Do not kill. Remember your wedding promises. Do not steal, or lie, or desire your neighbor's belongings.