Here, I. David prays for succour in distress. Is any afflicted? let him pray; let him pray as David does here. 1. He has an eye to God's pity, and prays, "Consider my affliction; take it into thy thoughts, and all the circumstances of it, and sit not by as one unconcerned." God is never unmindful of his people's afflictions, but he will have us to put him in remembrance (Isa 43:26), to spread our case before him, and then leave it to his compassionate consideration to do in it as in his wisdom he shall think fit, in his own time and way. 2. He has an eye to God's power and prays, Deliver me; and again, "Deliver me; consider my troubles and bring me out of them." God has promised deliverance (Psa 50:15) and we may pray for it, with submission to his will and with regard to his glory, that we may serve him the better. 3. He has an eye to God's righteousness, and prays, "Plead my cause; be thou my patron and advocate, and take me for thy client." David had a just cause, but his adversaries were many and mighty, and he was in danger of being run down by them; he therefore begs of God to clear his integrity and silence their false accusations. If God do not plead his people's cause, who will? He is righteous, and they commit themselves to him, and therefore he will do it, and do it effectually, Isa 51:22; Jer 50:34. (4.) He has an eye to God's grace, and prays, "Quicken me. Lord, I am weak, and unable to bear my troubles; my spirit is apt to droop and sink. O that thou wouldst revive and comfort me, till the deliverance is wrought!"
II. He pleads his dependence upon the word oaf God and his obedient regard to its directions: Quicken and deliver me according to thy word of promise, for I do not forget thy precepts. The more closely we cleave to the word of God, both as our rule and as our stay, the more assurance we may have of deliverance in due time.

I beheld the transgressors, and was grieved,.... Transgressors of the law of God, profane sinners; such as among whom he dwelt in Mesech and Kedar; it grieved him when he beheld their wicked life and conversation; as Lot in Sodom; and Isaiah and Jeremiah, among persons of unclean lips, and an assembly of treacherous men: and the word here used signifies "treacherous" (g) persons; and may design not the profane only, but professors also; that dealt treacherously with God and men, made a profession of religion, but walked not agreeably to it, which is matter of grief to good men; see Phi 3:18; as well as the conduct of abandoned sinners; with whom the psalmist was grieved, not so much on his own account, being hated and persecuted by them, as on their account, because of the ruin they brought upon themselves; but chiefly because of the dishonour of God, and their disregard to his righteous law. Joseph Kimchi paraphrases it,

"I saw them prosper, and was weary of my life;''

and refers for the sense of the word to Job 10:1; as does also Aben Ezra; but David Kimchi and the Targum interpret it "I strove", or "contended" with them; that is, with the transgressors;

because they kept not thy word: did not regard the doctrines, nor observe the precepts of it; but despised, rejected, and cast them away from them.

(g) "perfidos", Vatablus, Cocceius, Michaelis; "perfide agentes", Junius & Tremellius, Piscator.