John Gills Exposition of the Bible Commentary - Isaiah 51:9
Awake, awake, put on strength, O arm of the Lord ,.... The Septuagint and Arabic versions take the words to be an address to Jerusalem; and the Syriac version to Zion, as in Isaiah 51:17 , but wrongly: they are, as Jarchi says, a prayer of the prophet, or it may be rather of the church represented by him; and are addressed either to God the Father, who, when he does not immediately appear on the behalf of his people, is thought by them to be asleep, though he never slumbers nor sleeps, but... read more
Matthew Henry's Complete Commentary - Isaiah 51:9-16
In these verses we have, I. A prayer that God would, in his providence, appear and act for the deliverance of his people and the mortification of his and their enemies. Awake, awake! put on strength, O arm of the Lord! Isa. 51:9. The arm of the Lord is Christ, or it is put for God himself, as Ps. 44:23. Awake! why sleepest thou? He that keeps Israel neither slumbers nor sleeps; but, when we pray that he would awake, we mean that he would make it to appear that he watches over his people and is... read more