David
Psalm 7:13ESV·traditional attribution

he has prepared for him his deadly weapons, making his arrows fiery shafts.

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

Even now the thirsty arrow longs to wet itself with the blood of the persecutor. The bow is bent, the aim is taken, the arrow is fitted to the string, and what, O sinner, if the arrow should be let fly at thee even now!

Matthew Henry Presbyterian @wholebiblehenry

David having lodged his appeal with God by prayer and a solemn profession of his integrity, in the former part of the psalm, in this latter part does, as it were, take out judgment upon the appeal, by faith in the word of God, and the assurance it gives of the happiness and safety of the righteous and the certain destruction of wicked people that continue impenitent. I.

Commenting on Psalm 7:10-17