This is the most melancholy of all the psalms: it is all lamentation, and mourning, and woe. Here we have the pressure of spirit which the psalmist was under, ver. 1-9. His humble pleadings with God, ver. 10-14. A farther declaration of his affliction, ver. 15-18. A song or psalm for the sons of Korah, to the chief musician upon Mahalath Leannoth, Maschil of Heman the Ezrahite. Title of the psalm. Leannoth - Which seems to be the name of the instrument. Heman - Probably the same person who was famous in David's time, both for his skill in musick, and for wisdom.