John Trapp on Job 42:13

Verſe 13. He had alſo ſeven ſons, and three daughters] Whoſe perfections ſweetned the ſorrow which the loſſe of the other had cauſed him. —Sic uno avulſo non deficit alter Aureus.Virg. Ten children he had in heaven, and ten on earth. See the Note above on verſ. 10. The Lord well knew that wealth would be nothing ſo comfortable to Job. unleſſe he had children to leave it to, Gen. 15.2. His wife therefore returning to her duty from which ſhe had ſwerved, became fruitful at an age well advanced; for we read not of any other that he had.