David
Psalm 119:67ESV·traditional attribution

Before I was afflicted I went astray, but now I keep your word.

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

David here tells us what he had experienced, 1. Of the temptations of a prosperous condition: "Before I was afflicted, while I lived in peace and plenty, and knew no sorrow, I went astray from God and my duty." Sin is going astray; and we are most apt to wander from God when we are easy and think ourselves at home in the world.

John Gill Reformed Baptist @doctorgill

Their heart is as fat as grease,.... Or tallow, a lump of it, fat or grease congealed. That is, the heart of the above proud persons, who abounded in riches, were glutted with the things of this world; had more than heart could wish, and so became proud and haughty: or their hearts were gross, sottish, senseless, and stupid, as persons fat at heart are...