Ps 71:1-24. The Psalmist, probably in old age, appeals to God for help from his enemies, pleading his past favors, and stating his present need; and, in confidence of a hearing, he promises his grateful thanks and praise.
3. given commandment--literally, "ordained," as in Ps 44:4 68:28. rock . . . fortress--(Ps 18:2). 4, 5. cruel man--corrupt and ill-natured--literally, "sour." 5. trust--place of trust. 6-9. His history from early infancy illustrated God's care, and his wonderful deliverances were at once occasions of praise and ground of confidence for the future. my praise . . . of thee--literally, "in" or "by Thee" (Ps 22:25).
10, 11. The craft and malicious taunts of his enemies now led him to call for aid (compare the terms used, 2Sa 17:12 Ps 3:2 7:2).
12. (Compare Ps 22:19 40:4). 13. (Compare Ps 35:4 40:14). 14-16. The ruin of his enemies, as illustrating God's faithfulness, is his deliverance, and a reason for future confidence. 15. for I know . . . thereof--innumerable, as he had not time to count them. 16. in the strength--or, relying on it. thy righteousness--or, faithful performance of promises to the pious (Ps 7:17 31:1). 17-21. Past experience again encourages. taught me, &c.--by providential dealings.
20. depths of the earth--debased, low condition. 21. increase, &c.--that is, the great things done for me (Ps 71:19; compare Ps 40:5). 22-24. To the occasion of praise he now adds the promise to render it. will . . . praise--literally, "will thank." even thy truth--as to Thy truth or faithfulness.