David
Psalm 57:1ESV·traditional attribution

Be merciful to me, O God, be merciful to me, for in you my soul takes refuge; in the shadow of your wings I will take refuge, till the storms of destruction pass by.

John Calvin Reformed @genevareformer

PSALM 57 This psalm consists of two parts. In the first, David gives expression to the anxiety which he felt, imploring Divine assistance against Saul and his other enemies. In the second, he proceeds upon the confident expectation of deliverance, and stirs up his soul to the exercise of praise.

Commenting on Psalm 57:1-11

C.H. Spurgeon Reformed Baptist @princeofpreachers

Be merciful unto me, O God, be merciful unto me. Urgent need suggests the repetition of the cry, for thus intense urgency of desire is expressed. If 'he gives twice who gives quickly, 'so he who would receive quickly must ask twice. For mercy the psalmist pleads at first, and he feels he cannot improve upon his plea, and therefore returns to it.

Matthew Henry Presbyterian @wholebiblehenry

The title of this psalm has one word new in it, Al-taschith - Destroy not. Some make it to be only some known tune to which this psalm was set; others apply it to the occasion and matter of the psalm.

Commenting on Psalm 57:1-6