Psalms 78:51

²³Israel also came into Egypt. Jacob lived in the land of Ham.

⁸He struck the firstborn of Egypt, both of man and animal.

²²wondrous works in the land of Ham, and awesome things by the Red Sea.

³⁶He struck also all the firstborn in their land, the first fruits of all their manhood.

¹⁰to him who struck down the Egyptian firstborn, for his loving kindness endures forever;

¹⁵When Pharaoh stubbornly refused to let us go, the LORD killed all the firstborn in the land of Egypt, both the firstborn of man, and the firstborn of livestock. Therefore I sacrifice to the LORD all that opens the womb, being males; but all the firstborn of my sons I redeem.’

³“Reuben, you are my firstborn, my might, and the beginning of my strength, excelling in dignity, and excelling in power.

²⁹At midnight, the LORD struck 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 livestock. ³⁰Pharaoh rose up in the night, he, and all his servants, and all the Egyptians; and there was a great cry in Egypt, for there was not a house where there was not one dead.

¹²For I will go through the land of Egypt in that night, and will strike all the firstborn in the land of Egypt, both man and animal. I will execute judgments against all the gods of Egypt. I am the LORD.

⁶The sons of Ham were: Cush, Mizraim, Put, and Canaan.