Bede

Therefore, Sarai took his wife, and Lot his brother's son, and all the substance that they had gathered, and the souls that they had made in Haran; and they went forth to go into the land of Canaan. The phrase "the souls that they had made" is used to mean the children they had begotten. For in the Scriptures, a man is sometimes indicated by the name of the soul alone, sometimes by the name of the flesh alone. …

Commentary on Genesis (Hexaemeron) ↗