Charles Ellicott Commentary Isaiah 44

Yet·now hear ... — The thoughts of Israel are turned from their own sins to the unchanging love of God, and that is the ground of their hope.

You, Jesurun ... —The ideal name of Israel as “the upright one;” so the Book of Jasher is the book of the “upright,” of the heroes of Israel. (See Note on Deuteronomy 32:15.) The name is substituted for the Israel of the preceding verse, as pointing to the purpose of God in their election.

I will pour water ... —The latter words of the verse interpret the former. It is not the union of material or spiritual blessings, but first the symbol, and then the reality. The “thirst” is that of Psalm 42:1; John 4:13–14. In the promise of the Spirit we have an echo of Joel 2:28.

As willows. —The same word as in Psalms 137:2 and Isaiah 15:7. Botanists identify it with a species of Viburnum, which grows on the banks of streams, rather than with the “ weeping” or other species of Salix.

One shall say, I am the Lord’s. — The words paint, like Psalm 87:4-5, the eagerness of Gentile proselytes to attach themselves to Israel.

The forms of adhesion rise in emphasis:

1. The convert declares himself to belong to Jehovah;
2. He calls upon the name of Jacob;
3. He writes upon his hand, "To Jehovah!"—brands himself, as it were, as His servant , showing that the prohibition of idolatrous marks (Leviticus 19:28) did not exclude this (Revelation 9:4);
4. He takes the name of Israel in addition to his own as a title of honour.