The biblical feast of Passover is based on the death of a lamb. It remembers the night in which God delivered Israel from bondage in Egypt. It’s a deeply spiritual ceremony, and every part is full of prophetic meaning. But the two most essential elements are the blood and flesh of the lamb. The lamb’s blood was smeared on the doorposts and lintel (top crossbeam of a door), and the lamb’s body was roasted whole and eaten. As centuries passed the meal came to include a cup of red wine that above all other meanings was meant to remember the lamb’s blood. It had protected each household from the angel of death who swept through Egypt that night. When the angel saw the blood he passed over that house.