Exodus 7:10-12: "And Moses and Aaron went in unto Pharaoh, and they did so as the LORD had commanded: and Aaron cast down his rod before Pharaoh, and before his servants, and it became a serpent.

In the biblical account, when Moses ascended Mt. Sinai to receive the Ten Commandments from God, the encounter lasted 40 days. During that time, the Israelites asked his brother Aaron to make a ...