Isaiah 59:16

And he saw that there was no man, and wondered that there was no intercessor: therefore his arm brought salvation unto him; and his righteousness, it sustained him.

And he saw that (there was) no man, and wondered that (there was) no intercessor. "No man" - namely, to atone by his righteousness for the unrighteousness of the people. "Man" is emphatic, as in : no representative man able to retrieve the cause of fallen men (; Isaiah 63:5; ; ).

No intercessor - no one to interpose, 'to help and to uphold' ().

Therefore his arm brought salvation unto him. "His arm" (; ). Not man's arm, but His alone (; ).

And his righteousness - the "arm" of Messiah. He won the victory for us, not by mere might as God, but by His invincible righteousness as man, having 'the Spirit without measure' (; ; ; ; ; ).