Revelation 1:14

His head, even His hair, was very white, as Daniel described the Ancient of Days in Daniel 7:9 (i.e., God the Father). John sometimes first stated a general term and then followed it up with a more specific one, as here (i.e., head and hair). [Note: Beckwith, pp. 241-42, 438.] White hair often represents wisdom and the dignity of age in Scripture.

". . . Revelation borrows components of complex OT figures, not the figures themselves." [Note: Thomas E. McComiskey, "Alteration of OT Imagery in the Book of Revelation: Its Hermeneutical and Theological Significance," Journal of the Evangelical Theological Society 36:3 (September 1993):310.]

Thus we should not import everything that Old Testament figures teach in their contexts into Revelation. In Daniel 7:9, for example, the person with the white hair is God, but the white hair symbolizes wisdom. It may be improper to conclude that God meant John to understand that the person with the white hair in Revelation 1:14 is God. He definitely meant him to understand that the person with the white hair was wise.

John referred the images of God the Father in the Old Testament to Jesus Christ thus granting to Jesus the attributes and titles previously reserved for the Father (cf. Revelation 1:18; Revelation 2:8; Revelation 5:12; Revelation 22:13). [Note: Swete, p. 16.] This is one way of stressing the equality of Jesus with the Father, here specifically His eternal pre-existence.

His eyes were similar to blazing fire, evidently an allusion to His piercing judgment and omniscient understanding (cf. Revelation 2:18, Revelation 19:12; Daniel 10:6; Mark 3:5; Mark 3:34; Mark 10:21; Mark 10:23; Mark 11:11; Luke 22:61).