Albert Barnes' Notes on the Whole Bible - Isaiah 44:3
For I will pour water - Floods, rivers, streams, and waters, are often used in the Scriptures, and especially in Isaiah, to denote plenteous divine blessings, particularly the abundant influences of the Holy Spirit (see the note at Isaiah 35:6-7). That it here refers to the Holy Spirit and his influences, is proved by the parallel expressions in the subsequent part of the verse.Upon him that is thirsty - Or rather, ‘on the thirsty land.’ The word צמא tsâmē' refers here rather to land, and the... read more
The Pulpit Commentary - Isaiah 44:4
They shall spring up as among the grass . The LXX . have, "As grass among the waters;" and this reading is followed by Bishop Lowth, Ewald, and Mr. Cheyne. But there does not seem to be any necessity for departing from the existing Hebrew text. As willows . There is some doubt whether the Hebrew word used ( 'ereb ) is rightly translated "willows." The modern yarab seems certainly not to be a "willow," but rather a species of Viburnum . It is, however, most strictly a water-plant,... read more