Angel of Death & Passover

When the king of Egypt refuses to release the Israelites from slavery, Yahweh allows the angel of Death to go through the land but passes over any house marked with the blood of a lamb. At last the king of Egypt sets them free. (Ex. 12:12-13)

Passover and Death of the Firstborn (1883), by unknown artist in The Story of of the Bible from Genesis to Revelation. Public Domain.