David
Psalm 9:16ESV·traditional attribution

The LORD has made himself known; he has executed judgment; the wicked are snared in the work of their own hands. Higgaion. Selah

John Calvin Reformed @genevareformer

Psalm 9 David, after having recounted the former victories which he had gained, and exalted in lofty strains the grace and power of God in their happy issue, now again, when he sees new enemies and dangers rising up, implores the protection of the same God by whom he had before been delivered, and beseeches him to overthrow the pride of his enemies. To the chief musician Almuth Laben.

Commenting on Psalm 9:1-20

C.H. Spurgeon Reformed Baptist @princeofpreachers

Jehovah is known by the judgment which he executeth; his holiness and abhorrence of sin is thus displayed. A ruler who winked at evil would soon be known by all his subjects to be evil himself, and he, on the other hand, who is severely just in judgment reveals his own nature thereby.

Matthew Henry Presbyterian @wholebiblehenry

In these verses, I. David, having praised God himself, calls upon and invites others to praise him likewise, Psa 9:11. Those who believe God is greatly to be praised not only desire to do that work better themselves, but desire that others also may join with them in it and would gladly be instrumental to bring them to it: Sing praises to the Lord who dwelleth in Zion.

Commenting on Psalm 9:11-20