Psalm 105:36 in the World English Bible
He struck also all the firstborn in their land, the first fruits of all their manhood.
Context
35 And did eat up all the herbs in their land, and devoured the fruit of their ground.
36 He smote also all the firstborn in their land, the chief of all their strength.
37 He brought them forth also with silver and gold: and there was not one feeble person among their tribes.