David
Psalm 86:5ESV·traditional attribution

For you, O Lord, are good and forgiving, abounding in steadfast love to all who call upon you.

John Calvin Reformed @genevareformer

PSALM 86 In this psalm prayers and holy meditations, engaged in with the view of nourishing and confirming faith, together with praises and thanksgivings, are intermingled. It having been difficult in the judgement of carnal reason for David to escape from the distresses with which he was environed, he sets in opposition to its conclusions the infinite goodness and power of God.

Commenting on Psalm 86:1-17

C.H. Spurgeon Reformed Baptist @princeofpreachers

For thou, Lord, art good, and ready to forgive. Good at giving and forgiving; supplying us with his good, and removing our evil. Here was the great reason why the Psalmist looked to the Lord alone for his joy, because every joy creating attribute is to be found in perfection in Jehovah alone.

Matthew Henry Presbyterian @wholebiblehenry

This psalm was published under the title of a prayer of David; not as if David sung all his prayers, but into some of his songs he inserted prayers; for a psalm will admit the expressions of any pious and devout affections.

Commenting on Psalm 86:1-7