David
Psalm 121:4ESV·traditional attribution

Behold, he who keeps Israel will neither slumber nor sleep.

John Calvin Reformed @genevareformer

PSALM 121 The Psalmist, to encourage true believers confidently to trust in the aid of God, and to teach them to betake themselves to his protection, first, affirms that, to whatever quarter we turn our eyes it is impossible to find salvation anywhere else; and, in the second place, extols in lofty terms the fatherly care of God in defending his faithful ones. Song of Degrees. Psalm 121:1-2 1.

Commenting on Psalm 121:1-8

C.H. Spurgeon Reformed Baptist @princeofpreachers

Behold, he that keepeth Israel shall neither slumber nor sleep. The consoling truth must be repeated: it is too rich to be dismissed in a single line. It were well if we always imitated the sweet singer, and would dwell a little upon a choice doctrine, sucking the honey from it.

Matthew Henry Presbyterian @wholebiblehenry

This psalm teaches us, I. To stay ourselves upon God as a God of power and a God all-sufficient for us. David did so and found the benefit of it. 1. We must not rely upon creatures, upon men and means, instruments and second causes, nor make flesh our arm: "Shall I lift up my eyes to the hills?" - so some read it. "Does my help come thence?

Commenting on Psalm 121:1-8