45:1-4 Cyrus is called God's anointed; he was designed and qualified for his great service by the counsel of God. The gates of Babylon which led to the river, were left open the night that Cyrus marched his army into the empty channel. The Lord went before him, giving entrance to the cities he besieged. He gave him also treasures, which had been hidden in secret places. The true God was to Cyrus an unknown God; yet God foreknew him; he called him by his name. The exact fulfilment of this must have shown Cyrus that Jehovah was the only true God, and that it was for the sake of Israel that he was prospered. In all the changes of states and kingdoms, God works out the good of his church.

2. crooked … straight—(Isa 40:4), rather, "maketh mountains plain" [Lowth], that is, clear out of thy way all opposing persons and things. The Keri reads as in Isa 45:13, "make straight" (Margin).

gates of brass—(Ps 107:16). Herodotus (1.179) says, Babylon had a hundred massive gates, twenty-five on each of the four sides of the city, all, as well as their posts, of brass.

bars of iron—with which the gates were fastened.