Some time has passed and Jesus is now in the temple. This is not part of the previous conversation. Alternate translation: "Later, while Jesus was teaching in the temple area, he said to the people" (See: [[rc://en/ta/man/translate/figs-explicit]])
Jesus uses this question to get the people to think deeply about the Psalm he is about to quote. This can be written as a statement. Alternate translation: "Consider why the scribes say the Christ is the son of David." (See: [[rc://en/ta/man/translate/figs-rquestion]])