“As Jesus was teaching in the temple area he said, 'How do the scribes claim that the Messiah is the son of David? David himself, inspired by the holy Spirit, said: ‘The Lord said to my lord, “Sit at my right hand until I place your enemies under your feet.”’ David Himself calls him ‘lord’; so how is he his son?” [The] great crowd heard this with delight."
How is it that the Messiah can be both David’s son and lord? Why does Jesus mention this? And why is the crowd delighted?