David
Psalm 89:6ESV·traditional attribution

For who in the skies can be compared to the LORD? Who among the heavenly beings is like the LORD,

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

For who in the heaven can be compared unto the Lord —therefore all heaven worships him, seeing none can equal him. Who among the sons of the mighty can be likened unto the Lord?—therefore the assemblies of the saints on earth adore him, seeing none can rival him.

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