Psalms 78:51

78:51 He struck down all the firstborn in Egypt,

the firstfruits of their reproductive power in the tents of Ham.

Psalms 89:27

89:27 I will appoint him to be my firstborn son,

the most exalted of the earth’s kings.

Psalms 105:36

105:36 He struck down all the firstborn in their land,

the firstfruits of their reproductive power.