A girl shares with her friend about one sacrifice for the sins of all. In the Exodus story, the last plague of judgement was the death of all first-born Egyptian males. To escape this, Hebrews put the blood of a lamb on their door posts. The Hebrews came out through a miraculously parted Red Sea and escaped, but the Egyptians drowned.
“The Lord is my strength and song, and He has become my salvation; This is my God, and I will praise Him; My father’s God, and I will exalt Him.”