Sing unto the LORD a new song, and his praise from the ends of the earth, you that go down to the sea, and all that is in it; the coastlands, and its inhabitants.
All Commentaries on Isaiah 42:10 Go To Isaiah 42
Ephrem The Syrian
Here [Isaiah] speaks again about the Gentiles and invites them to sing a new song to the Lord. Indeed, if the Jews, redeemed from captivity after seventy years, had to sing a new hymn to the Lord, their liberator, why should not the Gentiles do the same? And should they not burst out into a new song with much more good reason, since they have been delivered from a bondage of many centuries?
“His praise from the end of the earth,” that is, it happens in a wonderful way that the salvation given by Christ to humankind is celebrated by the remotest nations with hymns and songs.
“The coastland and their inhabitants”: those nations who submit to the waves of the sea with their ships will praise the Lord. Those who have considered the sea as a divinity and sacrifice to it will recognize, after being enlightened by faith, their true God, and they will consider and preach him as the Lord of the sea.