On title, see Introduction. The Psalmist, mourning God's absence and the triumph of his enemies, prays for relief before he is totally destroyed, and is encouraged to hope his trust will not be in vain. (Psa 13:1-6) The forms of expression and figure here used are frequent (compare Psa 9:12, Psa 9:18; Psa 10:11-12). How long . . . for ever--Shall it be for ever?