10 To Him that smote Egypt in their first-born, for His mercy endureth for ever;
Psalms 136:10 Cross References - JPS_ASV_Byz
Exodus 11:5-6
5 and all the first-born in the land of Egypt shall die, from the first-born of Pharaoh that sitteth upon his throne, even unto the first-born of the maid-servant that is behind the mill; and all the first-born of cattle.
6 And there shall be a great cry throughout all the land of Egypt, such as there hath been none like it, nor shall be like it any more.
Exodus 12:12
12 For I will go through the land of Egypt in that night, and will smite all the first-born in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgments: I am the LORD.
Exodus 12:29
29 And it came to pass at midnight, that the LORD smote all the firstborn in the land of Egypt, from the first-born of Pharaoh that sat on his throne unto the first-born of the captive that was in the dungeon; and all the first-born of cattle.
Psalms 78:51
51 And smote all the first-born in Egypt, the first-fruits of their strength in the tents of Ham;
Psalms 105:36
36 He smote also all the first-born in their land, the first-fruits of all their strength.
Psalms 135:8
8 Who smote the first-born of Egypt, both of man and beast.
Hebrews 11:28
28 By faith he kept the passover, and the sprinkling of the blood, that the destroyer of the firstborn should not touch them.