[A Song {or} Psalm for the sons of Korah, to the chief Musician upon Mahalath Leannoth, Maschil of Heman the Ezrahite.] O LORD God of my salvation, I have cried day {and} night before thee: {for the sons: or, of the sons} {Maschil...: or, A Psalm of Heman the Ezrahite, giving instruction}