Ezekiel 29:19,20 - Joseph Benson’s Commentary on the Old and New Testaments

He shall take her multitude, and take her spoil Nebuchadnezzar and his army shall have the captives and spoil of Egypt, which they shall utterly pillage and lay waste. Because they wrought for me, saith the Lord The destruction of cities and countries is a work of God's providence, for the effecting of which he makes use of kings and princes as his instruments. Upon this account he calls Nebuchadnezzar his servant, Jeremiah 25:9, because he wrought for him, as it is here expressed, that is, executed his judgments upon Tyre, and the other cities and countries which God had delivered into his hands. Though Nebuchadnezzar was actuated by his own ambition to make the conquest of Tyre, yet, because in doing it he had executed God's purposes, and that which was pleasing to him, in humbling the Tyrians, therefore God here declares that he should not go without a reward; for that he would give him the spoil of Egypt, which nation was ripe for punishment. If God is so gracious as to reward those who do but execute his designs accidentally, not intentionally, how much reason have we to expect that he will most amply reward those who intentionally obey his will!