Isaiah 42:10-13

The mention of "new things" in Isaiah 42:9 suggests this "new song," in which the creation is called to celebrate Jehovah's redemption of His people. The expression is common in the Psalms (Psalms 33:3 Psalms 40:3; Psalms 96:1; Psalms 98:1; Psalms 144:9; Psalms 149:1; cf. Revelation 14:3). These Psalmists probably borrowed the term from our prophet, whose use of it bears the stamp of originality. It is a song "such as has never been heard in the heathen world" (Delitzsch). see ch. Isaiah 24:14-16.

from the end of the earth means (as in Genesis 19:4; Jeremiah 51:31) "from end to end."

ye that go down to the sea seafarers, cf. Psalms 107:23. There is some awkwardness in the following words: and all that is therein(lit. "and the fulness thereof"), which are naturally parallel to "the sea" and not to "those who go down to it." The harshness is removed by a plausible emendation of Lowth, who reads the whole clause in accordance with Psalms 96:11; Psalms 98:7 let the sea roar and the fulness thereof (יִרְעם for יו̇רְדֵי).

the isles see on ch. Isaiah 40:15. The mention of the sea and its coasts before the land is one indication of the prominence which the western lands have in the mind of this prophet.