David
Psalm 6:10BSB·traditional attribution

All my enemies will be ashamed and dismayed; they will turn back in sudden disgrace.

John Calvin Reformed @genevareformer

PSALM 6. David, being afflicted by the hand of God, acknowledges that he had provoked the Divine wrath by his sins, and, therefore, in order to obtain relief, he prays for forgiveness. At the same time, he regrets, that by being taken out of the world, he would be deprived of an opportunity of praising God.

Commenting on Psalm 6:1-10

C.H. Spurgeon Reformed Baptist @princeofpreachers

"Let all mine enemies be ashamed and sore vexed." This is rather a prophecy than an imprecation, it may be read in the future, "All my enemies shall be ashamed and sore vexed." They shall return and be ashamed instantaneously, —in a moment;—their doom shall come upon them suddenly. Death's day is doom's day, and both are sure and may be sudden.

Matthew Henry Presbyterian @wholebiblehenry

What a sudden change is here for the better! He that was groaning, and weeping, and giving up all for gone (Psa 6:6, Psa 6:7), here looks and speaks very pleasantly. Having made his requests known to God, and lodged his case with him, he is very confident the issue will be good and his sorrow is turned into joy. I.

Commenting on Psalm 6:8-10