Salmos 110
Cosmas Indicopleustes
Salmos 110:1
as the Lord himself testified when he addressed the Jews in these words: How then does David in the spirit call him Lord, saying: The Lord said unto my Lord, sit thou on my right hand till I put thy enemies underneath thy feet; if David then calleth him Lord, how is he his son? The expression, his Lord, clearly indicates that he was God, and that other, sit thou at my right hand, is clearly suited to his humanity. For, the word sit he said to him who was not sitting. But Deity is established in its own blessedness, and honour and glory, and is neither conceded by one who is greater to one who is less, nor is one who is less invited to assume it. But the humanity of Christ is, by the Deity which is inseparably united, invited in the words: Sit thou at my right hand, that is, in my dignity—for God being uncircumscribed has neither right hand nor left. But he says this to his humanity, sit in my dignity—that is, in my person, as the image of God, shown to all the world. — The Christian Topography, Book 5
Salmos 110:3
Farther down again in the same psalm he saith with reference to his deity: Out of the womb before morning have I begotten thee, as if the Father were saying to the Son, with reference to his deity, Thee before all creation have I brought forth from the womb (thus showing him to be consubstantial) and not afterwards, but having thee in myself without beginning and without limit, as if from the womb, from my own substance have I begotten thee, being with me and co-existing with me. — The Christian Topography, Book 5
Salmos 110:4
Then immediately again with reference to his humanity he says: The Lord hath sworn and will not repent, Thou art a priest for ever after the order of Melchisedec; for deity does not exercise the priestly office or render worship, but is rather itself worshipped and the recipient of sacred services. — The Christian Topography, Book 5