Final answer:
The angel of God's judgment brought death to the firstborn males of the Egyptians during the Passover.
Step-by-step explanation:
The angel of God's judgment brought death to the firstborn males of the Egyptians while "passing over" the houses of the Hebrew families. This event is known as the Passover, where the Hebrews marked their doors with a red sign to avoid the deadly plague, as commanded by Moses. This was the last and most devastating of a series of plagues that led the Pharaoh to free the Jewish people from slavery.