David
Psalm 99:6BSB·traditional attribution

Moses and Aaron were among His priests; Samuel was among those who called on His name. They called to the LORD and He answered.

John Calvin Reformed @genevareformer

PSALM 99 This psalm differs from those which precede it in one respect, that it speaks of the kingdom of God, and the blessings consequent upon it, as confined within Judea; and rather calls upon the posterity of Abraham, in distinction from the surrounding nations, to praise God for the privilege of their adoption. Psalm 99:1-4 1.

Commenting on Psalm 99:1-9

C.H. Spurgeon Reformed Baptist @princeofpreachers

Moses and Aaron among his priests, and Samuel among them that call upon his name. Though not ordained to the typical priesthood, Moses was a true priest, even as Melchizedek had been before him. God has ever had a priesthood beside and above that of the law. The three holy men here mentioned all stood in his courts, and saw his holiness, each one after his own order.

Matthew Henry Presbyterian @wholebiblehenry

The happiness of Israel in God's government is here further made out by some particular instances of his administration, especially with reference to those that were, in their day, the prime leaders and most active useful governors of that people - Moses, Aaron, and Samuel, in the two former of whom the theocracy or divine government began (for they were employed to form Israel into...

Commenting on Psalm 99:6-9