Verse 7. - And they answered, that they could not tell whence it was. The reply of Jesus, which so perplexed the Sanhedrin, really inflicted a grave blow to their prestige, thus compelling the grave doctors of the Law, who claimed the right of deciding all momentous questions, to decline to pronounce a judgment on so grave a question as "the position of the Baptist," that mighty preacher who had so stirred and roused Israel and who had with his life paid the forfeit of his boldness in rebuking crime in high places, thereby no doubt enormously enlarging his already vast popularity with the people.

20:1-8 Men often pretend to examine the evidences of revelation, and the truth of the gospel, when only seeking excuses for their own unbelief and disobedience. Christ answered these priests and scribes with a plain question about the baptism of John, which the common people could answer. They all knew it was from heaven, nothing in it had an earthly tendency. Those that bury the knowledge they have, are justly denied further knowledge. It was just with Christ to refuse to give account of his authority, to those who knew the baptism of John to be from heaven, yet would not believe in him, nor own their knowledge.Whether from heaven, or of men; in this, no doubt, they told an untruth: but they chose rather to sacrifice their consciences than their interest, and pretend ignorance rather than profess the truth, when they saw they should be put to confusion, or be exposed to the resentments of the people.