Isaiah 63:1 - Coke's Commentary on the Holy Bible

Who is this, &c.— Or, Who is this that cometh from Edom, with purple garments from Bozrah? This, who is solemn, or venerable in his attire, marching on in the greatness of his strength? I that speak of deliverance, [doing right,] mighty to save. See chap. Isaiah 34:5-6. The Idumeans joined with the enemies of the Jews in bringing on the destruction of Jerusalem in the time of the captivity, for which they were severely reproved by the prophets, and threatened with utter destruction, which accordingly came to pass: the prophets, therefore, generally apply the names of these people to signify any inveterate and cruel enemy, as in this place; but the words Edom and Bozrah may be taken in the appellative sense, to denote in general a field of blood, or a place of slaughter; the word Edom signifying red, and Bozrah, a vintage, according to some; which in the prophetical idiom, import God's vengeance upon the wicked. The Messiah is said to be solemn or venerable in his attire; that is to say, like a general marching at the head of his army, and carrying the token of victory on his raiment; or, according to others, clothed in such a manner as to command reverence and respect. The frequent transitions from one person to another, observed in the Hebrew poetry, is a strong indication of a mind hurried away by the impulse of inspiration; and sometimes, as in the present case, is as strong a mark of a dramatic form of composition. See Lowth's Prelections, and Vitringa.