Lamb of god

The Israelites were given specific instructions. Sacrifice a lamb, spread the blood of the lamb on your doorposts, and eat the lamb as your last meal before leaving Egypt. In the final plague on Pharaoh, the angel of death swept through the land, killing all the firstborn, but he passed over the houses with the blood of the lamb on the doorposts. The Passover meal became a yearly remembrance in Israel. Centuries later, John the Baptist introduced Jesus as the Lamb of God.