David himself calls him 'Lord.' How then can he be his son?" The large crowd listened to him with delight." (NIV)
David himself calls Him Lord; so how can it be that He is his Son? Now the great mass of the people heard [Jesus] gladly [listening to Him with delight]. (AMP)
David therefore himself calleth him Lord; and whence is he then his son? And the common people heard him gladly. (KJV)