David
Psalm 25:10ESV·traditional attribution

All the paths of the LORD are steadfast love and faithfulness, for those who keep his covenant and his testimonies.

John Calvin Reformed @genevareformer

PSALM 25. This psalm consists of meditations mingled with prayers. Being rudely treated, and grievously distressed, by the cruelty of his enemies, David, in order to obtain assistance from God, first acknowledges that God had justly made use of this as a means of chastising and punishing him for his sins; and, therefore, he prays for their forgiveness, that he may at once enjoy assurance...

Commenting on Psalm 25:1-22

C.H. Spurgeon Reformed Baptist @princeofpreachers

These three verses are a meditation upon the attributes and acts of the Lord. He who toils in the harvest field of prayer should occasionally pause awhile and refresh himself with a meal of meditation.

Commenting on Psalm 25:8

C.H. Spurgeon Reformed Baptist @princeofpreachers

This is a rule without exception. God is good to those that be good. Mercy and faithfulness shall abound towards those who through mercy are made faithful. Whatever outward appearances may threaten we should settle it steadfastly in our minds that while grace enables us to obey the Lord's will we need not fear that Providence will cause us any real loss.