Matthew Poole's English Annotations on the Holy Bible - Exodus 8:12
Or, as the place is fitly rendered by others, because of the word, or matter of, or about the frogs which he had given or propounded to Pharaoh. Because he had given his word both for the thing and the time of it, he prayed more earnestly lest God should be dishonoured, and Pharaoh have occasion of triumph. The Hebrew verbs to put and to give are frequently exchanged, as appears by comparing 1 Kings 10:9, with 2 Chronicles 9:8; and Isaiah 42:1, with Matthew 12:18. Moses cried unto the Lord:... read more
Matthew Poole's English Annotations on the Holy Bible - Exodus 8:10
Why not presently? Answ. 1. Because he hoped ere that time they might be removed, either by natural causes or by chance, and so he should not need the favour of Moses or his God. 2. Because he thought it a hard and long work to remove so vast a number of frogs, and that Moses might use divers ceremonies, as the magicians did, in his addresses to God, which would require some considerable time. read more