For David himself says in the book of Psalms, The Lord said to my Lord, Take your seat at my right hand,

David himself says in the scroll of Psalms, 'The Lord said to my Lord, 'Sit at my right hand,

For David, in the book of Psalms, says himself – 'The Lord said to my lord: Sit at my right hand,

And David himself saith in the book Psalm,.... In Psalm 110:1
the Lord said to my Lord, sit thou on my right hand; which words were delivered by David, as inspired by the Spirit of God; and contain a speech of God the Father to his son Jesus Christ, upon his ascension to heaven, after his sufferings, death, and resurrection from the dead; when he was bid to sit down in human nature, at the right hand of God, in token of having done his work on earth to full satisfaction; and in the relation of which David calls Christ his Lord; and is the reason of their being mentioned.

Psalm 110:1.