David
Psalm 7:6ESV·traditional attribution

Arise, O LORD, in your anger; lift yourself up against the fury of my enemies; awake for me; you have appointed a judgment.

John Calvin Reformed @genevareformer

PSALM 7 David, loaded with unjust calumny, calls upon God to be his advocate and defender, and commits his innocence to the Divine protection. In the first place, he protests that his conscience did notaccuse him of the wickedness laid to his charge. Secondly, he shows how greatly it concerns the glory of God that he should execute judgment against the ungodly.

Commenting on Psalm 7:1-17

C.H. Spurgeon Reformed Baptist @princeofpreachers

We now listen to a fresh prayer, based upon the avowal which he has just made. We cannot pray too often, and when our heart is true, we shall turn to God in prayer as naturally as the needle to its pole. "Arise, O Lord, in thine anger." His sorrow makes him view the Lord as a judge who had left the judgment-seat and retired into his rest.

Matthew Henry Presbyterian @wholebiblehenry

Shiggaion is a song or psalm (the word is used so only here and Hab 3:1) - a wandering song (so some), the matter and composition of the several parts being different, but artificially put together - a charming song (so others), very delightful.

Commenting on Psalm 7:1-9