Deu 21:17, Psa 78:51 | ESV | STEP | but he shall acknowledge the firstborn , the son of the unloved , by giving him a double portion of all that he has , for he is the firstfruits of his strength . The right of the firstborn is his.

c Ex. 12:29; [Ps. 105:36; 135:8; 136:10]

Deuteronomy 21:17

17 but he shall acknowledge the firstborn, the son of the unloved, by giving him a double portion of all that he has, for he is ^athe firstfruits of his strength. ^bThe right of the firstborn is his.

Psalms 78:51

51 He struck down every ^cfirstborn in Egypt,
the firstfruits of their strength in the tents of ^dHam.