The interpretation timeline
Luke 11:33 Douay-Rheims

No man lighteth a candle, and putteth it in a hidden place, nor under a bushel; but upon a candlestick, that they that come in, may see the light.

A.D. 253 – 1871 10 witnesses 12 excerpts

Patristic

before A.D. 750
253
A.D.
Origen Patristic
c. A.D. 184–253
“For He gives the name of the eye especially to our understanding, but the whole soul, although not corporeal, He metaphorically calls the body. For the whole soul is enlightened by the understanding.”
“For the understanding from its very beginning desires only singleness, containing no dissimulation, or guile, or division in itself.”
“That is, If thy material body, when the light of a candle shines upon it, is made full of light, so that not one of thy members is any longer in darkness; much more when thou sinnest not, shall thy whole spiritual body be so full of light, that its brightness may be compared to the shining of a candle, while the light which was in the body, and which used to be darkness, is directed whithersoever the understanding may command.”
Source
390
A.D.
A.D. 329–390
“(Epist. 41.) Or else; The light and eye of the Church is the Bishop. It is necessary then that as the body is rightly directed as long as the eye keeps itself pure, but goes wrong when it becomes corrupt, so also with respect to the Prelate, according to what his state may be, must the Church in like manner suffer shipwreck, or be saved.”
Source
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“Either faith is the light, as it is written, Thy word, O Lord, is a lantern to my feet. (Ps. 119:105.) For the word of God is our faith. But a lantern cannot shine except it has received its quality from something else. Hence also the powers of our mind and senses are enlightened, that the piece of money which had been lost may be found. Let no one then place faith under the law, for the law is bound by certain limits, grace is unlimited; the law obscures, grace makes clear.”
Source
444
A.D.
A.D. 376–444
“The Jews said, that our Lord performed His miracles not for faith, i. e. that they might believe on Him, but to gain the applause of the spectators, i. e. that He might have more followers. He refutes therefore this calumny, saying, No man, when he hath lighted a candle, putteth it in a secret place, neither under a bushel, but on a candlestick.”
Source
604
A.D.
Gregory the Great Patristic
c. A.D. 540–604
“(28. Mor. c. 12.) Or else; By the name body each particular action is understood which follows its own intention, as it were the eye of the spectators. Therefore it is said, The light of the body is the eye, because by the ray of a good intention the deserving parts of an action receive light. If then thy eye be single, thy whole body will be full of light, for if we intend rightly in singleness of heart, we accomplish a good work, even though it seem not to be good. And if thy eye be evil, thy whole body will be full of darkness, because when with a crooked intention even a right thing is done, although it appears to glitter in men’s sight, yet before the bar of the internal judge it is covered with darkness. Hence too it is rightly added, Take heed therefore that the light which is in thee be not darkness. For if what we think we do well we cloud by a bad intention, how many are the evils themselves which even when we do them we know to be evil?”
Source
735
A.D.
Bede the Venerable Patristic
c. A.D. 672–735
“Our Lord here speaks of Himself, shewing that although He had said above that no sign should be given to this wicked generation but the sign of Jonas, yet the brightness of His light should by no means be hid from the faithful. He Himself indeed lights the candle, who filled the vessel of our nature with the fire of His divinity; and this candle surely He wished neither to hide from believers, nor to place under a bushel, that is, enclose it in the measure of the law, or confine it within the limits of the single nation of the Jews. But He placed it upon a candlestick, that is, the Church, for He has imprinted on our foreheads the faith of His incarnation, that they who with a true faith wish to enter the Church, might be able to see clearly the light of the truth. Lastly, He bids them remember to cleanse and purify not only their works, but their thoughts, and the intentions of the heart. For it follows, The light of the body is the eye.”
Source

Scholastic

c. 1100 – 1500
1107
A.D.
c. 1055–1107
“Or else, because the Jews, seeing the miracles, accused them out of the malice of their heart, therefore our Lord tells them, that, receiving the light, that is, their understanding, from God, they were so darkened with envy, as not to recognise His miracles and mercies. But to this end received we our understanding from God, that we should place it upon a candlestick, that others also who are entering in may see the light. The wise man indeed has already entered, but the learner is still walking. As if He said to the Pharisees, You ought to use your understanding to know the miracles, and declare them to others, seeing that what you see are the works not of Beelzebub, but the Son of God. Therefore, keeping up the meaning, He adds, The light of the body is the eye.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Take heed therefore,.... By attending to the light of the Gospel, shining in the ministration of it, and do not neglect and despise it: that the light which is in thee be not darkness; lest being given up to a judicial blindness and hardness of heart, not only the light of nature, which the Jews had in common with the Gentiles, but even that notional light and knowledge of divine things, which they had by being favoured with an external revelation, the writings of the Old Testament, should be lost.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“No man, when he hath lighted, etc. - See on Mat 5:15 (note). Our Lord intimates, that if he worked a miracle among such an obstinate people, who were determined to disbelieve every evidence of his Messiahship, he should act as a man who lighted a candle and then covered it with a bushel, which must prevent the accomplishment of the end for which it was lighted. See also on Mar 4:21 (note), etc.”
Source
1871
A.D.
1871
“(See on Mat 5:14-16; Mat 6:22-23.) But Luk 11:36 here is peculiarly vivid, expressing what pure, beautiful, broad perceptions the clarity of the inward eye imparts.”
Modern · 1953 →

The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.