New Defender's Study Bible Notes
6:5 Woe is me. Isaiah had pronounced six “woes” on the people of Israel because of their sins, and justifiably so. However, when confronted with the glory and holiness of God, he must also cry: “Woe is me”—apart from the grace of God.
6:5 mine eyes have seen. Isaiah saw the Second Person of the divine Triune Godhead (John 1:18). He indeed is “the King, the LORD of hosts.”