For I am the LORD thy God, the Holy One of Israel, thy Saviour: I gave {d} Egypt for thy ransom, Cush and Seba for thee.

(d) I turned Sennacherib's power against these countries, and made them suffer the affliction which you would have done, and so were as the payment of our ransom, Isa 37:9.

Wesley's Notes

43:3 I gave Egypt - This was fulfilled when the king of Assyria, Esar - haddon, who designed to revenge his father's disgrace, upon the Jews, was diverted and directed by God to employ his forces against Egypt, and Ethiopia, and Seba. Seba - The Sabaeans were confederate with the Ethiopians.

Jamieson-Fausset-Brown Bible Commentary

3. Egypt for thy ransom-Either Egypt or Israel must perish; God chose that Egypt, though so much more mighty, should be destroyed, in order that His people might be delivered; thus Egypt stood, instead of Israel, as a kind of "ransom." The Hebrew, kopher, means properly "that with which anything is overlaid," as the pitch with which the ark was overlaid; hence that which covers over sins, an atonement. Nebuchadnezzar had subdued Egypt, Ethiopia (Hebrew, Cush), and Saba (descended from Cush, Ge 10:7, probably Meroe of Ethiopia, a great island formed by the Astaboras and the Nile, conquered by Cambyses, successor of Cyrus). Cyrus received these from God with the rest of the Babylonian dominions, in consideration of his being about to deliver Israel. However, the reference may be to the three years' war in which Sargon overcame these countries, and so had his attention diverted from Israel (see on [787]Isa 20:1) [Vitringa]. But the reference is probably more general, namely, to all the instances in which Jehovah sacrificed mighty heathen nations, when the safety of Israel required it.

Matthew Henry's Concise Commentary

43:1-7 God's favour and good-will to his people speak abundant comfort to all believers. The new creature, wherever it is, is of God's forming. All who are redeemed with the blood of his Son, he has set apart for himself. Those that have God for them need not fear who or what can be against them. What are Egypt and Ethiopia, all their lives and treasures, compared with the blood of Christ? True believers are precious in God's sight, his delight is in them, above any people. Though they went as through fire and water, yet, while they had God with them, they need fear no evil; they should be born up, and brought out. The faithful are encouraged. They were to be assembled from every quarter. And with this pleasing object in view, the prophet again dissuades from anxious fears.