David
Psalm 3:1ESV·traditional attribution

O LORD, how many are my foes! Many are rising against me;

John Calvin Reformed @genevareformer

PSALM 3. David, although driven from his kingdom, and pressed down with utter despair of relief from every earthly quarter, ceases not to call upon God, and supports himself from his promise against the greatest terrors, against the mockery and cruel assaults of his enemies; and, finally, against death itself, which then forced itself upon his consideration.

Commenting on Psalm 3:1-8

C.H. Spurgeon Reformed Baptist @princeofpreachers

The poor broken-hearted father complains of the multitude of his enemies: and if you turn to 2 Samuel 15:12, you will find it written that "the conspiracy was strong; for the people increased continually with Absalom, " while the troops of David constantly diminished!

Matthew Henry Presbyterian @wholebiblehenry

The title of this psalm and many others is as a key hung ready at the door, to open it, and let us into the entertainments of it; when we know upon what occasion a psalm was penned we know the better how to expound it.

Commenting on Psalm 3:1-3