Charles Ellicott Commentary Isaiah 59:1

"Behold, Jehovah`s hand is not shortened, that it cannot save; neither his ear heavy, that it cannot hear:" — Isaiah 59:1 (ASV)

Behold, the Lord’s hand ... —The declaration is an implied answer to the complaint, like that of Isaiah 58:3, that the glorious promises had not yet been fulfilled. The murmurers are told that the hindrance is on their side.