Awake. Rouse thee. Not the same form as in Isaiah 51:9 with Isaiah 52:1.
Related Commentaries of Isaiah 51:17
Isaiah 51:17
17 Awake, awake, stand up, O Jerusalem, which hast drunk at the hand of the LORD the cup of his fury; thou hast drunken the dregs of the cup of trembling, and wrung them out.