Exodus 12:29

The Tenth Plague of Egypt.

At midnight the Lord struck down all the firstborn in the land of Egypt, from the firstborn of Pharaoh who sat on his throne to the firstborn of the captive who was in the dungeon, and all the firstborn of the livestock.

Illustration from a painting by J.M.W. Turner - The Tenth Plague of Egypt, 1802, oil on canvas.

Turner was 27 years old when this was first exhibited.