David
Psalm 119:111BSB·traditional attribution

Your testimonies are my heritage forever, for they are the joy of my heart.

John Calvin Reformed @genevareformer

PSALM 119 As this psalm treats of various matters, it is difficult to give an epitome of its contents. There are, however, two things which the prophet mainly aims at; the exhorting of the children of God to follow godliness and a holy life; and the prescribing of the rule, and pointing out the form of the true worship of God, so that the faithful...

Commenting on Psalm 119:1-176

Matthew Henry Presbyterian @wholebiblehenry

The psalmist here in a most affectionate manner, like an Israelite indeed, resolves to stick to the word of God and to live and die by it. I. He resolves to portion himself in it, and there to seek his happiness, nay, there to enjoy it; "Thy testimonies (the truths, the promises, of thy word) have I taken as a heritage for ever, for they...

Commenting on Psalm 119:111-112

John Gill Reformed Baptist @doctorgill

Depart from me, ye evildoers,.... The same with the evil thinkers, Psa 119:113; According to Aben Ezra, they that think evil commonly do it; as they devise it, they commit it. This describes such persons whose course of life is, and who make it their constant business to do, iniquity; such the psalmist desires to depart his presence, to keep at a distance from him...