David
Psalm 138:3BSB·traditional attribution

On the day I called, You answered me; You emboldened me and strengthened my soul.

John Calvin Reformed @genevareformer

PSALM 138 In this Psalm David, in remembrance of the singular help which had always been vouchsafed him by God — the experience he had enjoyed of his faithfulness and goodness, takes occasion to stir himself up to gratitude; and from what he had known of the divine faithfulness, he anticipates a continuance of the same mercy. If dangers must be met, he confidently looks for a happy issue.

Commenting on Psalm 138:1-8

C.H. Spurgeon Reformed Baptist @princeofpreachers

In the day when I cried thou answerest me. No proof is so convincing as that of experience. No man doubts the power of prayer after he has received an answer of peace to his supplication. It is the distinguishing mark of the true and living God that he hears the pleadings of his people, and answers them; the gods hear not and answer not...

Matthew Henry Presbyterian @wholebiblehenry

I. How he would praise God, compare Psa 111:1. 1. He will praise him with sincerity and zeal - "With my heart, with my whole heart, with that which is within me and with all that is within me, with uprightness of intention and fervency of affection, inward impressions agreeing with outward expressions." 2.

Commenting on Psalm 138:1-5