David
Psalm 61:6BSB·traditional attribution

Increase the days of the king’s life; may his years span many generations.

John Calvin Reformed @genevareformer

PSALM 61 This psalm begins with prayer, or, at any rate, with the brief record of a prayer, which David had preferred to God in a season of deep distress. It is chiefly occupied, however, with the praises of God, expressing his thankfulness for a miraculous deliverance which he had experienced from some imminent danger, and for his establishment upon the throne.

Commenting on Psalm 61:1-8

C.H. Spurgeon Reformed Baptist @princeofpreachers

Thou wilt prolong the king's life; or, better, "days to the days of the King thou wilt add." Death threatened, but God preserved his beloved. David, considering his many perils, enjoyed a long and prosperous reign. And his years as many generations.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we may observe, I. With what pleasure David looks back upon what God had done for him formerly (Psa 61:5): Thou, O God! hast heard my vows, that is, 1. "The vows themselves which I made, and with which I bound my soul: thou hast taken notice of them; thou hast accepted them, because made in sincerity, and been well pleased with...

Commenting on Psalm 61:5-8