David
Psalm 62:11ESV·traditional attribution

Once God has spoken; twice have I heard this: that power belongs to God,

John Calvin Reformed @genevareformer

PSALM 62 The greater part of this psalm is occupied with meditations, in which David encourages himself and others to hope in God, and fortifies his mind against the assaults of temptation. And as we are ever prone to be drawn away from God by the influence which worldly objects exert over our senses, perishing and evanescent as these are, occasion is taken to show...

Commenting on Psalm 62:1-12

C.H. Spurgeon Reformed Baptist @princeofpreachers

God hath spoken once. So immutable is God that he need not speak twice, as though he had changed; so infallible, that one utterance suffices, for he cannot err; so omnipotent, that his solitary word achieves all his designs. We speak often and say nothing; God speaks once and utters eternal verities.

Matthew Henry Presbyterian @wholebiblehenry

Here we have David's exhortation to others to trust in God and wait upon him, as he had done. Those that have found the comfort of the ways of God themselves will invite others into those ways; there is enough in God for all the saints to draw from, and we shall have never the less for others sharing with us. I.

Commenting on Psalm 62:8-12