² tn A. B. Davidson (Job, 90) offers a solution by taking “earth” to mean all the lower forms of life that teem in the earth (a metonymy of subject).

³ sn The text is clearly going out of its way to say that the people of Israel flourished in Egypt. The verbs פָּרָה (parah, “be fruitful”), שָׁרַץ (sharats, “swarm, teem”), רָבָה (ravah, “multiply”), and עָצַם (ʿatsam, “be strong, mighty”) form a literary link to the creation account in Genesis. The text describes Israel’s prosperity in the terms of God’s original command to be fruitful and multiply and fill the earth, to show that their prosperity was by divine blessing and in compliance with the will of God. The commission for the creation to fill the earth and subdue it would now begin to materialize through the seed of Abraham.