Charles H. Spurgeon on Psalms 119:23

Princes also did sit and speak against me. David was high game, and the great ones of the earth went a hawking after him. Princes saw in him a greatness which they envied, and therefore they abused him. On their thrones they might have found something better to consider and speak about, but they turned the seat of judgment into the seat of the scorner. Most men covet a prince's good word, and to be spoken ill of by a great man is a great discouragement to them, but the Psalmist bore his trial with holy calmness. Many of the lordly ones were his enemies, and made it their business to speak ill of him: they held sittings for scandal, sessions for slander, parliaments of falsehood, and yet he survived all their attempts upon him.

But thy servant did meditate in thy statutes. This was brave indeed. He was God's servant, and therefore he attended to his Master's business; he was God's servant, and therefore felt sure that his Lord would defend him. He gave no heed to his princely slanderers, he did not even allow his thoughts to be disturbed by a knowledge of their plotting in conclave. Who were these malignants that they should rob God of his servant's attention, or deprive the Lord's chosen of a moment's devout communion. The rabble of princes were not worth five minutes' thought, if those five minutes had to be taken from holy meditation. It is very beautiful to see the two sittings: the princes sitting to reproach David, and David sitting with his God and his Bible, answering his traducers by never answering them at all. Those who feed upon the word grow strong and peaceful, and are by God's grace hidden from the strife of tongues.

Note that in the close of the former octave he had said, "I will meditate, "and here he shows how he had redeemed his promise, even under great provocation to forget it. It is a praiseworthy thing when the resolve of our happy hours is duly carried out in our seasons of affliction.