41 But he said to them, “How can they say that the Christ is David’s son? 42 For David himself says in the Book of Psalms,
Luke 20:41-44
“‘The Lord said to my Lord,
“Sit at my right hand,
43 until I make your enemies your footstool.”’
44 David thus calls him Lord, so how is he his son?”
See the article on Psalm 110:1.