For thou [art] the God of my strength: why dost thou cast me off? why go I mourning because of the oppression of the enemy?
Ver. 2. For thou art the God of my strength] As being in covenant with me, both offensive and defensive. In the Lord Jehovah is a Rock of ages, or everlasting strength, Isaiah 26:4, for God of my strength, Psalms 42:9, is my rock.
Why go I mourning] See Psalms 42:9 .