And the land of Egypt shall be desolate and waste,.... Men few or none being left in it, to till it, nor cattle found upon it:
and they shall know that I am the Lord; by these judgments executed upon them, now foretold; and which when come to pass, they will be obliged to acknowledge the omniscience and omnipotence of Jehovah:
because thou hast said, the river is mine, and I have made it;
Ezekiel 29:3; this insolent expression was highly resented by the Lord, as appears by the repetition of it. The Targum is here, as before,
"the kingdom is mine, and I have subdued it;''
but, notwithstanding this vaunt, he could not keep it.