Adam Clarke's Commentary on the Bible - Genesis 12:17
The Lord plagued Pharaoh - What these plagues were we know not. In the parallel case, Genesis 20:18 , all the females in the family of Abimelech, who had taken Sarah in nearly the same way, were made barren; possibly this might have been the case here; yet much more seems to be signified by the expression great plagues. Whatever these plagues were, it is evident they were understood by Pharaoh as proofs of the disapprobation of God; and, consequently, even at this time in Egypt there was... read more
Adam Clarke's Commentary on the Bible - Genesis 12:16
He had sheep, and oxen, etc. - As some of these terms are liable to be confounded, and as they frequently occur, especially in the Pentateuch, it may be necessary to consider and fix their meaning in this place. Sheep; צאן tson , from tsaan , to be plentiful or abundant; a proper term for the eastern sheep, which almost constantly bring forth twins, Song of Solomon 4:2 , and sometimes three and even four at a birth. Hence their great fruitfulness is often alluded to in the... read more