1.

O sing unto the LORD a new song; for he hath done marvellous things: his right hand, and his holy arm, hath gotten him the victory.

Psalms 98.
The Psalmist exhorteth the Jews, the Gentiles, and all creatures, to praise God.
A Psalm.
This psalm has several expressions like those which are used in Psalms 1 96: and therefore probably it was composed by David. The Greek copies call it, "A Psalm of David." Perhaps it was written upon occasion of some remarkable deliverance which God had lately granted to Israel, as an earnest of future blessings; especially of the coming of that great blessing, the Lord Christ, to give salvation to his faithful people. Grotius is of opinion, that this psalm is a kind of summary or abridgement of Moses's song in Exodus 15.
Psalms 98:1. Hath gotten him the victory Hath brought him salvation. This in the strictest letter belongs to the prophetic sense, accomplished in the resurrection of Christ. For then, in an eminent manner, did the divine power, called God's right hand, and God's fidelity in making good his promise, fitly stiled his holy arm, bring him, that is Christ, relief; in raising his dead body out of the grave. See Dr. Hammond.

2.

The LORD hath made known his salvation: his righteousness hath he openly shewed in the sight of the heathen.

3.

He hath remembered his mercy and his truth toward the house of Israel: all the ends of the earth have seen the salvation of our God.

Psalms 98:3. He hath remembered his mercy That this is prophetically spoken of the redemption of mankind by Christ, appears from Luke 1:54; Luke 1:72.

4.

Make a joyful noise unto the LORD, all the earth: make a loud noise, and rejoice, and sing praise.

5.

Sing unto the LORD with the harp; with the harp, and the voice of a psalm.

6.

With trumpets and sound of cornet make a joyful noise before the LORD, the King.

7.

Let the sea roar, and the fulness thereof; the world, and they that dwell therein.

8.

Let the floods clap their hands: let the hills be joyful together

9.

Before the LORD; for he cometh to judge the earth: with righteousness shall he judge the world, and the people with equity.