The interpretation timeline
Luke 12:8 Douay-Rheims

And I say to you, Whosoever shall confess me before men, him shall the Son of man also confess before the angels of God.

A.D. 339 – 1871 11 witnesses 21 excerpts

Patristic

before A.D. 750
339
A.D.
c. A.D. 260–339
“He rightly declares this threatening, in order that none should refuse to confess Him by reason of the punishment, which is to be denied by the Son of God, to be disowned by Wisdom, to fall away from life, to be deprived of light, and to lose every blessing; but all these things to suffer before God the Father who is in heaven, and the Angels of God.”
Source
397
A.D.
Ambrose of Milan Patristic
A.D. 339–397
“He has also well introduced faith, stimulating us to its confession, and to faith itself He has placed virtue as a foundation. For as faith is the incentive to fortitude, so is fortitude the strong support of faith.”
“Truly by the Son of Man we understand Christ, Who by the Holy Spirit was born of a virgin, seeing that His only parent on earth is the Virgin. What then, is the Holy Spirit greater than Christ, that they who sin against Christ should obtain pardon, while they who offend against the Holy Spirit are not thought worthy to obtain it? But where there is unity of power there is no question of comparison.”
Source
“Thus it is thought by some that we should believe both the Son and the Holy Spirit to be the same Christ, preserving the distinction of Persons with the unity of the substance, since Christ both God and man is one Spirit, as it is written, The Spirit before our face, Christ the Lord; (Lam. 4:20.) the same Spirit is holy, for both the Father is holy, and the Son holy, and the Spirit holy. If then Christ is each, what difference is there except we know that it is not lawful for us to deny the divinay of Christ?”
Source
407
A.D.
John Chrysostom Patristic
A.D. 347–407
“(Hom. 34. in Matt.) The Lord is not then content with an inward faith, but requires an outward confession, urging us to confidence and greater love. And since this is useful for all, He speaks generally, saying, Whosoever shall confess me, &c.”
“(ubi sup.) Both in condemnation a greater punishment is announced, and in blessing a greater reward; as if He said, Now you confess and deny, but I then, for a far greater recompense of good and evil awaits them in the world to come.”
“There are other modes also of denying which St. Paul describes, saying, They profess that they know God, but in works they deny him. (Tit. 1:16.) And again, If any provide not for his own, and specially for those of his own house, he hath denied the faith, and is worse than an infidel. (1 Tim. 5:8.) Also, Flee from covetousness, which is idolatry. (Col. 3:5.) Since then there are so many modes of denial, it is plain that there are many likewise of confession, which whosoever has practised, shall hear that most blessed voice with which Christ greets all who have confessed Him. But mark the precaution of the words. For in the Greek he says, Whosoever shall confess in Me, shewing that not by his own strength, but by the aid of grace from above, a man confesses Christ. But of him who denies, He said not “in Me,” but me. For though being destitute of grace he denies, he is nevertheless condemned, because the destitution is owing to him who is forsaken, or he is forsaken for his own fault.”
Source
“(Hom. 33. in Matt.) But elsewhere it is said, Be ready to answer every one who shall ask you for a reason of the hope that is in you. When indeed a contest or strife arises among friends, He bids us take thought, but when there are the terrors of a court of justice and fear on every side, He gives His own strength so as to inspire boldness and utterance, but not dismay.”
Source
444
A.D.
A.D. 376–444
“Now Paul says, If thou wilt confess with thy mouth the Lord Jesus, and believe in thy heart that God raised him from the dead, thou shalt be saved. (Rom. 10:9.) The whole mystery of Christ is conveyed in these words. For we must first confess that the Word born of God the Father, that is, the only-begotten Son of His substance, is Lord of all, not as one who had gained His Lordship from without and by stealth, but who is in truth by His nature Lord, as well as the Father. Next we must confess that God raised Him from the dead, who was Himself truly made man, and suffered in the flesh for us; for such He rose from the dead. Whoever then will so confess Christ before men, namely, as God and the Lord, Christ will confess him before the angels of God at that time when He shall descend with the holy angels in the glory of His Father at the end of the world.”
Source
“Now they who deny are first indeed those who in time of persecution renounce the faith. Besides these, there are heretical teachers also, and their disciples.”
“But if the Holy Spirit were a creature, and not of the divine substance of the Father and the Son, how does an injury committed against Him entail upon it so great a punishment as is denounced against those that blaspheme against God?”
735
A.D.
Bede the Venerable Patristic
c. A.D. 672–735
“It was said above, that every hidden work and word is to be revealed, but He now declares that this revelation is to take place in the presence of the heavenly city and the eternal Judge and King; saying, But I say unto you, Whosoever shall confess me, &c.”
“Or else; Whoso saith that the works of the Holy Spirit are those of Beelzebub, it shall not be forgiven him either in the present world, or in that which is to come. Not that we deny that if he could come to repentance he could be forgiven by God, but that we believe that such a blasphemer as by the necessity of his deserts he would never come to forgiveness, so neither to the fruits themselves of a worthy repentance; according to that, He hath blinded their eyes, so that they should not be converted, and I should heal them. (Isa. 6:10.)”
Source
“Nor however are all they who say that the Spirit is not holy, or is not God, but is inferior to the Father and the Son, involved in the crime of unpardonable blasphemy, because they are led to do it through human ignorance, not a demoniacal hatred, as the rulers of the Jews were.”
“For when we are led for Christ’s sake before judges, we ought to offer only our will for Christ, but in answering, the Holy Spirit will supply His grace, as it is added, For the Holy Spirit will leach you, &c.”

Scholastic

c. 1100 – 1500
1107
A.D.
c. 1055–1107
“Since then our weakness is twofold, and either from fear of punishment we shun martyrdom, or because we are ignorant and can not give a reason of our faith, he has excluded both; the fear of punishment in that He said, Fear not them which kill the body, but the fear of ignorance, when He said, Take no thought how or what ye shall answer, &c.”
Source

Post-Reformation

c. 1650 – 1900
1771
A.D.
John Gill Reformed
1697–1771
“Also I say unto you, &c. The same as in Mat 10:32 whosoever shall confess me before men, him shall the son of man also confess before the angels of God; only instead of I, he here calls himself "the son of man"; and instead of "before my Father which is in heaven", here it is, "before the angels of God"; who will accompany Christ when he comes to judgment, and will be present, when he shall acknowledge his true followers as the blessed of his Father, the chosen of God, his redeemed and sanctified ones; and reject others before his Father, and the whole universe of rational beings: it is said in the Targum on Sol 1:15. "when the children of Israel do the will of their king, he by his word (the Logos) praises them in the family of the holy angels.'' This Christ, the eternal word, will do at the great day.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“Shall confess - See on Mat 10:32, Mat 10:33 (note).”
1849
A.D.
1774–1849
“Whosoever shall confess me. By these words we are informed, that more than bare inward protestations of fidelity will be demanded of us; for he moreover requires an exterior confession of our faith. (St. Ambrose)”
1871
A.D.
1871
“confess . . . deny--The point lies in doing it "before men," because one has to do it "despising the shame." But when done, the Lord holds Himself bound to repay it in kind by confessing such "before the angels of God." For the rest, see on Luk 9:26.”

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“(inter.) Now he says, how, with respect to the manner of speaking, what, with respect to the manner of intention. How ye shall answer to those who ask, or what ye shall say to those who wish to learn.”
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.