Arise, O LORD, in thine anger, lift up thyself because of the rage of mine enemies: and awake for me to the judgment that thou hast commanded.
But as I am innocent of the charges alleged (Psalms 7:3-5), I may justly appeal to thy righteousness to vindicate me.
Lift up thyself - from the attitude of stillness; image of a giant lifting up his mighty frame to strike the enemy, whom he had heretofore suffered to remain unnoticed (Psalms 50:3; Psalms 50:21; Psalms 78:65; Isaiah 33:10).
Because of the rage. As the same Hebrew [bª-] is translated "IN" in the first clause, it must be rendered similarly here, "with the rage (habroth-literally, the over-passings, like floods passing over the river banks, Isaiah 8:7-8) of mine enemies." As they lift themselves up in rage, so, O Yahweh, do thou lift thyself up, in corresponding rage.
Awake for me - literally, 'toward me;' in relation to me.
(To) the judgment (that) thou hast commanded. David grounds his prayer on God's being, the righteous Judge of the world (cf. Psalms 7:8; Psalms 7:11). God has ordained judgment, as the necessary vindication of his righteousness. The final judgment will be its fullest manifestation (Psalms 7:8). Even in the meantime He often gives earnests of that last vindication of His righteousness, by punishing the ungodly and rewarding the righteous openly in this world.