David
Psalm 119:44ESV·traditional attribution

I will keep your law continually, forever and ever,

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

Here is, 1. David's humble petition for the tongue of the learned, that he might know how to speak a word in season for the glory of God: Take not the word of truth utterly out of my mouth. He means, "Lord, let the word of truth be always in my mouth; let me have the wisdom and courage which are necessary to enable me...

Commenting on Psalm 119:43-44

John Gill Reformed Baptist @doctorgill

I will speak of thy testimonies also before kings,.... As very likely he did before Saul and his courtiers, before the king of Achish and the princes of the Philistines, when as yet he was not a king himself; and when he was come to the throne, such kings as came to visit him, instead of talking with them about affairs of state, he spoke...