New Defender's Study Bible Notes
63:1 cometh from Edom. The answer to this question is the returning Messiah, the Lord Jesus Christ, who will evidently come to the great host of armies of the Beast assembled all the way from Edom on the south to Armageddon on the north. See on Isaiah 34:5-6; Revelation 14:20. The “great slaughter” (Isaiah 34:6) will apparently commence at Bozrah, the capitol of Edom (or Idumea), then continue up the great “valley of Jehoshaphat” (Joel 3:2), climaxing in the valley of Megiddo, near Armageddon (Revelation 16:16), the “Mount of Slaughter.”
63:2 red in thine apparel. His apparel is red, as one treading in a winepress, because “He treadeth the winepress of the fierceness and wrath of Almighty God,” and thus He has a “vesture dipped in blood” (Revelation 19:13,15).
63:4 day of vengeance. The long-awaited “day of vengeance” is sure to come, though Christ clearly indicated it would be deferred until His second coming. See on Isaiah 61:2.
63:9 angel of his presence. Christ in a pre-incarnate theophany was suffering with, and for, His people even prior to His incarnation.
63:10 his holy Spirit. A noteworthy Old Testament reference to the Holy Spirit. Vexing Him is, no doubt, tantamount in this age to quenching or grieving the Holy Spirit (I Thessalonians 5:19; Ephesians 4:30).