Ezekiel 1:26

Sapphire - Clear heavenly blue.

The appearance of a man - Deeply significant is the form of this manifestation. Here is no angel conveying God’s message to man, but the glory of the Lord Himself. We recognize in this vision the prophetic annunciation of the Holy Incarnation. We are told little of the extent to which the human form was made evident to the prophet. For the vision was rather to the mind than to the bodily eye, and even inspired language was inadequate to convey to the hearer the glory which eye hath not seen or ear heard, and which only by special revelation it hath entered into the heart of man to conceive.