Luke 20:44

44 "David here designates the Messiah as 'my Master' - so how can the Messiah also be his 'son'?"

Luke 20:44 Meaning and Commentary

Luke 20:44

David therefore called him Lord
Or, "my Lord", as the Syriac and Ethiopic versions read; or, "his Lord", as the Arabic version. This is the inference from the words before cited ( Psalms 110:1 ) , upon which the following question is asked, how is he then his son?
how can these things be reconciled? in what sense can he be both his Lord and son? (See Gill on Matthew 22:45).

Luke 20:44 In-Context

42 In the Book of Psalms, David clearly says, God said to my Master, "Sit here at my right hand
43 until I put your enemies under your feet."
44 "David here designates the Messiah as 'my Master' - so how can the Messiah also be his 'son'?"
45 With everybody listening, Jesus spoke to his disciples.
46 "Watch out for the religion scholars. They love to walk around in academic gowns, preen in the radiance of public flattery, bask in prominent positions, sit at the head table at every church function.