Then Jesus said to them, "Why is it said that the Messiah is the son of David?1
References for Luke 20:41
David himself declares in the Book of Psalms: " 'The Lord said to my Lord: "Sit at my right hand
until I make your enemies a footstool for your feet." '2
References for Luke 20:43
David calls him 'Lord.' How then can he be his son?"