If the title of the fifty-ninth Psalm can be accepted as authentic, it indicates the working of David's mind at this period of his history. It is called "Michtam of David, when Saul sent, and they watched the house to kill him." It is not to be imagined that it was composed in the hurried interval between David reaching his house and Michal sending him away. That David had a short time of devotion then we may readily believe, and that the exercises of his heart corresponded generally to the words of the psalm, which might be committed afterwards to writing as a memorial of the occasion. From the words of the psalm it would appear that the messengers sent by Saul to apprehend him were men of base and cowardly spirit, and that they were actuated by the same personal hatred to him that marked Saul himself. No doubt the piety of David brought to him the enmity, and the success of David the rivalry, of many who would be emboldened by the king's avowed intention, to pour out their insults and calumnies against him in the most indecent fashion. Perhaps it is to show the estimate he formed of their spirit, rather than to denote literally their nationality, that the Psalmist calls on God to "awake to visit all _the heathen_." Prowling about the city under cloud of darkness, coming and going and coming again to his house, "they return at evening; they make a noise like a dog, and go about the city. Behold, they belch out with their mouth; swords are in their lips; for who, say they, doth hear?" Thus showing his estimate of his enemies, the Psalmist manifests the most absolute reliance on the protection and grace of God. "But Thou, O Lord, shalt laugh at them; Thou shalt have all the heathen in derision. Because of his strength will I wait upon Thee; for God is my defence. The God of my mercy shall prevent me; God shall let me see my desire upon mine enemies." He does not ask that they may be slain, but he asks that they may be conspicuously dishonoured and humbled, and made to go about the city like dogs, in another sense--not like dogs seeking to tear upright men in pieces, but like those starved, repulsive, cowardly brutes, familiar in Eastern cities, that would do anything for a morsel of food. His own spirit is serene and confident--"Unto Thee, O my strength, will I sing; for God is my defence, and the God of my mercy."