David
Psalm 115:11BSB·traditional attribution

You who fear the LORD, trust in the LORD! He is their help and shield.

John Calvin Reformed @genevareformer

PSALM 115 It is obvious that this psalm was penned when the Church was deeply afflicted. Unworthy as they are to be heard by God, the faithful, nevertheless, offer up supplications to him for deliverance, lest his holy name might be exposed to scorn and reproach among the heathen.

Commenting on Psalm 115:1-18

C.H. Spurgeon Reformed Baptist @princeofpreachers

The next verse is of the same tenor— Ye that fear the Lord, trust in the Lord, whether belonging to Israel, or to the house of Aaron, or not, all those who reverence Jehovah are permitted and commanded to confide in him. He is their help and their shield. He does aid and protect all those who worship him in filial fear, to whatever nation they may belong.

Matthew Henry Presbyterian @wholebiblehenry

In these verses, I. We are earnestly exhorted, all of us, to repose our confidence in God, and not suffer our confidence in him to be shaken by the heathens' insulting over us upon the account of our present distresses.

Commenting on Psalm 115:9-18