Albert Barnes Commentary Isaiah 28:6

"and a spirit of justice to him that sitteth in judgment, and strength to them that turn back the battle at the gate." — Isaiah 28:6 (ASV)

And for a spirit of judgment - (compare the note at Isaiah 1:26; Isaiah 11:2). The sense of this passage is that Jehovah would enlighten the judges of the land, so that they should understand what was right, and be disposed to do it.

To him that sitteth in judgment - This is to be understood collectively, and means those who sat upon the bench of justice; that is, the magistracy in general.

And for strength to them that turn the battle to the gate - That is, to the very gate of their enemies; who not only repel their foes from their own city, but who drive them even to the gates of their own cities, and besiege them there. Thus 2 Samuel 11:23: And we were upon them even unto the entering of the gate; that is, we drove them back to their own gates.