THE GOSPEL ACCORDING TO LUKE - Chapter 3 - Verse 22
Verse 22. In a bodily shape. This was a real visible appearance, and
was doubtless seen by the people. The dove is an emblem of purity and
harmlessness, and the form of the dove was assumed on this occasion to
signify, probably, that the spirit with which Jesus would be endowed
would be one of purity and innocence. The Holy Spirit, when he
assumes a visible form, assumes that which will be emblematic of the
thing to be represented. Thus he assumed the form of tongues, to
signify the miraculous powers of language with which the apostles would
be endowed; the appearance of fire, to denote their power, &c.,
Ac 2:3.