Verse 9. - When I cry unto thee, then shall mine enemies turn back: this I know; for God is for me; literally, in the day that I call upon thee.

56:8-13 The heavy and continued trials through which many of the Lord's people have passed, should teach us to be silent and patient under lighter crosses. Yet we are often tempted to repine and despond under small sorrows. For this we should check ourselves. David comforts himself, in his distress and fear, that God noticed all his grievances and all his griefs. God has a bottle and a book for his people's tears, both the tears for their sins, and those for their afflictions. He observes them with tender concern. Every true believer may boldly say, The Lord is my helper, and then I will not fear what man shall do unto me; for man has no power but what is given him from above. Thy vows are upon me, O Lord; not as a burden, but as that by which I am known to be thy servant; as a bridle that restrains me from what would be hurtful, and directs me in the way of my duty. And vows of thankfulness properly accompany prayers for mercy. If God deliver us from sin, either from doing it, or by his pardoning mercy, he has delivered our souls from death, which is the wages of sin. Where the Lord has begun a good work he will carry it on and perfect it. David hopes that God would keep him even from the appearance of sin. We should aim in all our desires and expectations of deliverance, both from sin and trouble, that we may do the better service to the Lord; that we may serve him without fear. If his grace has delivered our souls from the death of sin, he will bring us to heaven, to walk before him for ever in light.When I cry unto thee,.... In prayer;

then shall mine enemies turn back; great is the strength of prayer; the effectual fervent prayer of the righteous avails much against their enemies: when Moses lifted up his hands, Israel prevailed: the cases of Asa, Jehoshaphat, and Hezekiah, prove it; this David was assured of, and knew it to be true by experience, his prayer being often the prayer of faith in this respect;

this I:know: for God is for me; he knew that when he prayed his enemies would flee; because God was on his side, who is greater than they; or by this he knew that God was for him, and was his God, by hearing his prayers, and causing his enemies to turn back: or, however, let things go how they will, this he was assured of, that he had a covenant interest in God, and who would be his God and guide even unto death.