Mark 11:33

And they answered and said unto Jesus, We cannot tell. And Jesus answering said unto them, Neither do I tell you by what authority I do these things.
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Bede

AD 735
It is as if Jesus had said: “I will not tell you what I know, since you will not confess what you know.” In this way knowledge is hidden from those who wrongly seek it principally for two reasons: first, when the one who seeks it does not have sufficient capacity to understand what he is seeking for, and second, when through contempt for the truth one is unworthy of having the subject of his inquiry explained to him…. So these critics were most justly set aback. They retreated in disgrace. .

Bede

AD 735
But we must observe that there is adifference in those who pray; he who has perfect faith, which worketh by love, can by his prayer or even his command remove spiritual mountains, as Paul did with Elymas the sorcerer. But let those who are unable to mount up to such aheight of perfection pray that their sins should be forgiven them, and they shall obtain what they pray for, provided that they themselves first forgive those who have sinned against them. If however they disdain to do this, not only shall they be unable to perform miracles by their prayers, but they shallnot even be able to obtain pardon for their sins, which is implied in what follows; “But if ye do not forgive, neither will your Father which is in heaven forgive your trespasses.”. And, indeed, when they say, “By what authority doest thou these things,” they doubt its being the power of God, and wish it to be understood that what He did was the devil’s work. When they add also, “Who gave thee this authority,” they eviden...

George Leo Haydock

AD 1849
Neither do I tell you I do not tell you what I know, because you refuse to own what you know. We should observe, there are here two reasons for concealing the truth from inquirers: 1st, when he that inquireth after the truth is incapable of understanding it; 2d, when on account of some contempt of the truth, or some other evil indisposition, the person is not deserving of having the truth laid open to him. (Ven. Bede)

Jerome

AD 420
They envied the Lamp, and were in the dark, wherefore it is said, “I have ordained a lamp for mine anointed; his enemies will I clothe with shame.” There follows: “And Jesus answering saithunto them, Neither do I tell you by what authority I do these things.”

Theophylact of Ochrid

AD 1107
They were angry with the Lord, for having cast out of the temple those who had made it a place of merchandize, and therefore they come up to Him, to question and tempt Him. Wherefore it is said: “And they come again to Jerusalem: and as He was walking in the temple, there come to Him the Chief Priests, and the Scribes, and the elders, and say unto Him, By what authoritydoest thou these things? and who gave thee authority to do these things? "As if they had said, Who art thou thatdoest these things? Dost thou make thyself a doctor, and ordain thyself Chief Priest?. Further, they said this, thinking to bring Him to judgment, so that if He said, by mine own power, they might lay hold upon Him; but if He said, by the power of another, they might make the people leave Him, for they believed Him to be God. But the Lord asks them concerning John, not without a reason, nor in a sophisticated way, but because John had borne witness of Him. Wherefore there follows: “And Jesus answered and said u...

Knowing this first, that no prophecy of the scripture is of any private interpretation - 2 Peter 1:20

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