21:27 We cannot tell. Hence the Lord refuses to answer their question, but immediately addresses them in a parable. As his death approaches, his parables are unusually solemn.
21:27 Neither tell I you - Not again, in express terms: he had often told them before, and they would not believe him.
21:23-27 As our Lord now openly appeared as the Messiah, the chief priests and scribes were much offended, especially because he exposed and removed the abuses they encouraged. Our Lord asked what they thought of John's ministry and baptism. Many are more afraid of the shame of lying than of the sin, and therefore scruple not to speak what they know to be false, as to their own thoughts, affections, and intentions, or their remembering and forgetting. Our Lord refused to answer their inquiry. It is best to shun needless disputes with wicked opposers.
