John Calvin Commentary Psalms 98:4

"Make a joyful noise unto Jehovah, all the earth: Break forth and sing for joy, yea, sing praises." — Psalms 98:4 (ASV)

Exult before Jehovah all the earth. Here, he repeats the exhortation with which he had begun.

By addressing it to the nations at large, he indicates that when God breaks down the middle wall of partition, all will be gathered to the common faith, and one Church formed throughout the whole world.

When he speaks of musical instruments, the allusion is evidently to the practice of the Church at that time, without any intention of binding the Gentiles to the observance of the ceremonies of the law.

The repetition used is emphatic and implies that even the most ardent attempts people might make to celebrate the great work of the world’s redemption would fall short of the riches of God’s grace.

This is brought out still more forcibly in what follows, where feeling is ascribed to inanimate things.

The whole passage has been expounded elsewhere, and it is unnecessary to insist further on it.