Charles Ellicott Commentary Isaiah 63:5

"And I looked, and there was none to help; and I wondered that there was none to uphold: therefore mine own arm brought salvation unto me; and my wrath, it upheld me." — Isaiah 63:5 (ASV)

I looked ... — As in Isaiah 1:2, the absolute isolation of the avenger and redeemer is emphasized again and again. Nothing but his own indomitable and righteous zeal against evil had sustained him.