It is this which has made David for Christians now, as well as for Jews of old, the great master and teacher of heart religion. In the early church, in the middle ages, as now, Catholic alike and Protestant, whosoever has feared God and sought after righteousness; whosoever has known and sorrowed over the sinfulness and weakness of his own heart; whosoever has believed that the Lord God was dealing with him as with a son, educating him, chastening him, purifying him and teaching him, by the chances and changes of his mortal life; whosoever, I say, has had any real taste of vital experimental religion--to David's Psalms he has gone, as to a treasure house, to find there his own feelings, his own doubts, his own joys, his own thoughts of God and His providence--reflected as in a glass; everything which he would say, said for him already, in words which will never be equalled on earth. There are psalms among them of bitter agony, cries as of a lost child, like that 6th psalm--"Oh Lord, rebuke me not in Thine anger, neither chasten me in Thy hot displeasure," &c. And yet ending like that, with a sudden flash of faith, and hope, and joy, which is a peculiar mark of David's character, faith in God triumphing over all the chances and changes of mortal life. "The Lord hath heard the voice of my weeping. The Lord will receive my prayer, all mine enemies shall be confounded and sore vexed. They shall be turned back and put to shame." There are psalms again which are prayers for guidance and teaching like the 5th Psalm--"Lead me, O Lord, in thy righteousness because of mine enemies: make thy way plain before my face." There are psalms, again, of Natural Religion, such as the 8th and the 19th and the 29th, the words of a man who had watched and studied nature by day and night, as he kept his sheep upon the mountains, and wandered in the desert with his men. "I will consider thy heavens, the works of thy hand, the moon and the stars which thou hast ordained . . . the fowls of the air and the fishes of the sea" . . . (Ps. viii. 3-8). "The heavens declare the glory of God: and the firmament sheweth his handi- work" (Ps. xix. 1-6). "It is the Lord that commandeth the water: it is the glorious God that maketh the thunder: it is the Lord that ruleth the sea: the voice of the Lord breaketh the cedar trees: the voice of the Lord divideth the flames of fire: the voice of the Lord shaketh the wilderness: the Lord sitteth above the water flood," &c. (Ps. xxix.). There are psalms of deep religious experience like the 32d.--"Blessed is he whose unrighteousness is forgiven, and whose sin is covered . . . Thou art a place to hide me in. . . . Thy hand is heavy upon me day and night . . . I will acknowledge my sin unto Thee."