David
Psalm 89:5BSB·traditional attribution

The heavens praise Your wonders, O LORD—Your faithfulness as well—in the assembly of the holy ones.

John Calvin Reformed @genevareformer

PSALM 89 The prophet who wrote this psalm, whoever he was, in approaching the throne of grace to make supplication to God in behalf of the afflicted Church, lays down, as an encouragement both to himself and the rest of the faithful to cherish good hope, the covenant which God had made with David.

Commenting on Psalm 89:1-52

C.H. Spurgeon Reformed Baptist @princeofpreachers

And the heavens shall praise thy wonders, O Lord. Looking down upon what God had done, and was about to do, in connection with his covenant of grace, all heaven would be filled with adoring wonder. The sun and moon, which had been made tokens of the covenant, would praise God for such an extraordinary display of mercy, and the angels and redeemed spirits would...

Matthew Henry Presbyterian @wholebiblehenry

These verses are full of the praises of God. Observe, I. Where, and by whom, God is to be praised. 1. God is praised by the angels above: The heavens shall praise thy wonders, O Lord! Psa 89:5; that is, "the glorious inhabitants of the upper world continually celebrate thy praises." Bless the Lord, you his angels, Psa 103:20.

Commenting on Psalm 89:5-14