(10) Sing unto the Lord a new song.--The words are familiar in the Psalms (Psalm 33:3; Psalm 40:3; Psalm 98:1) and are probably quoted from them. The only touch of definite localisation is found in the mention of Kedar. (See Note on Isaiah 21:16.) Starting from this, the other terms gain a more defined significance. The proclamation seems to be addressed to the nations of the Eastern, not the Western world, as if to the ships that sailed from Elath or Ezion-geber down the Elanitic Gulf. The rock, or Sela (see Isaiah 16:1), is the Petra of Roman Idumaea; the ships are those that trade to Ophir or the land of Sinim. The cities and the nomad tribes are all invited to join in the hymn of praise, and it is to be echoed in the far-off "islands," or coasts, of the Indian Ocean.

Verse 10. - Sing unto the Lord a new song. The call for a "new song" is based upon the ground that the mercy vouchsafed was a "new" one (see ver. 9). The expression is frequent in the Psalms (Psalm 33:3; Psalm 96:1; Psalm 98:1; Psalm 144:9; Psalm 149:1). His praise from the end of the earth; i.e. "let his praise be sung by all the inhabitants of the earth to its remotest bounds." The sea. Sea and land are called upon equally to proclaim God's praise; the sea, "and its fulness" (margin) - those who frequent it in ships, and those who dwell on its shores and islands. The last clause, "the isles and the inhabitants thereof," is exegetical of the preceding one - " all that is therein."

42:5-12 The work of redemption brings back man to the obedience he owes to God as his Maker. Christ is the light of the world. And by his grace he opens the understandings Satan has blinded, and sets at liberty from the bondage of sin. The Lord has supported his church. And now he makes new promises, which shall as certainly be fulfilled as the old ones were. When the Gentiles are brought into the church, he is glorified in them and by them. Let us give to God those things which are his, taking heed that we do not serve the creature more than the Creator.Sing unto the Lord a new song,.... On account of the new things before prophesied of, and now done; on account of redemption and salvation by Christ, and the conversion of the Gentiles through the light of the Gospel brought among them; the song of redeeming love, and for the Gospel, and regenerating grace; and not the Jews only, but the Gentiles also, are called upon to sing this song, as having a special share in the blessings, the subject of it: hence it follows,

and his praise from the end of the earth; thither the Gospel being sent, and there made effectual to the conversion of many, these are exhorted to sing and show forth the praises of him who had called them out of Heathenish blindness and darkness into the marvellous light of the Gospel and grace of God:

ye that go down into the sea; in ships, that trade by sea; such as the Phoenicians, Tyrians, and Sidonians, to whom the Gospel came, and where it was preached with success, to the conversion of many of them, and therefore had reason to join in this new song; see Acts 11:19 or such that went by sea to distant parts, on purpose to publish the Gospel, as Paul, Barnabas, Silas, and Timothy; and who, succeeding in their work, had reason to rejoice; see Acts 13:4,

and all that is therein: or "the fulness of it" (s); meaning not the fishes in it, but the islands of it, as next explained:

the isles, and the inhabitants thereof; as Cyprus, Crete, and other isles, which heard the joyful sound of the Gospel, and embraced it, Acts 13:4, and, as the sea often denotes the western part of the world from Judea, this may design the European parts of it, and the islands in it, particularly ours of Great Britain and Ireland, whither the Gospel came very early.

(s) "et plenitudo ejus", Munster, Pagainus, Montanus.