The interpretation timeline
2 John 1:10 Douay-Rheims

If any man come to you, and bring not this doctrine, receive him not into the house nor say to him, God speed you.

A.D. 202 – 1871 10 witnesses

Patristic

before A.D. 750
202
A.D.
Irenaeus Patristic
c. A.D. 130–202
“But as many as separate from the Church, and give heed to such old wives' fables as these, are truly self-condemned; and these men Paul commands us, "after a first and second admonition, to avoid." And John, the disciple of the Lord, has intensified their condemnation, when he desires us not even to address to them the salutation of "good-speed;" for, says he, "He that bids them be of good-speed is a partaker with their evil deeds;" and that with reason, "for there is no good-speed to the ungodly," saith the Lord.”
Source
215
A.D.
c. A.D. 150–215
“He says, "If any come unto you and bring not this doctrine, receive him not into your house, neither bid him God speed; for he that bids him God speed is partaker of his evil deeds." He forbids us to salute such, and to receive them to our hospitality. For this is not harsh in the case of a man of this sort. But he admonishes them neither to confer nor dispute with such as are not able to handle divine things with intelligence, lest through them they be seduced from the doctrine of truth, influenced by plausible reasons. Now, I think that we are not even to pray with such, because in the prayer which is made at home, after rising from prayer, the salutation of joy is also the token of peace.”
Source
220
A.D.
Tertullian Patristic
c. A.D. 150–220
“Although we ought to be seeking at all times, where ought we to seek? Among the heretics, where all is foreign and opposed to our truth, with whom we are forbidden to associate?”
258
A.D.
Cyprian Patristic
c. A.D. 200–258
“Also another Aurelius of Chullabi said: John the apostle laid it down in his epistle, saying: "If any one come unto you, and have not the doctrine of Christ, receive him not into your house, and say not to him, Hail. For he that saith to him, Hail, partakes with his evil deeds." How can such be rashly admitted into God's house, who are prohibited from being admitted into our private dwelling? Or how can we hold communion with them without the Church's baptism, to whom, if we should only say Hail, we are partakers of their evil deeds?”
Source

Post-Reformation

c. 1650 – 1900
1714
A.D.
Matthew Henry Reformed
1662–1714
“Here, I. Upon due warning given concerning seducers, the apostle gives direction concerning the treatment of such. They are not to be entertained as the ministers of Christ. The Lord Christ will distinguish them from such, and so would he have his disciples. The direction is negative. 1. "Support them not: If there come any unto you, and bring not this doctrine (concerning Christ as the Son of God, the Messiah and anointed of God for our redemption and salvation), receive him not into your house." Possibly this lady was like Gaius, of whom we read in the next epistle, a generous housekeeper, and hospitable entertainer of travelling ministers and Christians. These deceivers might possibly expect the same reception with others, or with the best who came there (as the blind are often bold enough), but the apostle allows it not: "Do not welcome them into your family." Doubtless such may be relieved in their pressing necessities, but not encouraged for ill service. Deniers of the faith are destroyers of souls; and it is supposed that even ladies themselves should have good understanding in the affairs of religion. 2. "Bless not their enterprises: Neither bid him God speed. Attend not their service with your prayers and good wishes." Bad work should not be consecrated or recommended to the divine benediction. God will be no patron of falsehood, seduction, and sin. We ought to bid God speed to evangelical ministration; but the propagation of fatal error, if we cannot prevent, we must not dare to countenance. Then, II. Here is the reason of such direction, forbidding the support and patronage of the deceiver: For he that biddeth him God speed is partaker of his evil deeds. Favour and affection partake of the sin. We may be sharers in the iniquities of others. How judicious and how cautious should the Christian be! There are many ways of sharing the guilt of other people's transgressions; it may be done by culpable silence, indolence, unconcernedness, private contribution, public countenance and assistance, inward approbation, open apology and defence. The Lord pardon our guilt of other persons' sins!”
Source
1771
A.D.
John Gill Reformed
1697–1771
“If there come any unto you,.... Under the character of a preacher; and bring not this doctrine; or does not preach the doctrine of Christ, as before explained, but despises it, and preaches a contrary one: receive him not into your house; neither into the house of God, suffer him not to preach there; nor into your own house, give him no entertainment there: false teachers always tried to creep into houses, where they served their own turn every way, both by feeding their bellies, and spreading their pernicious doctrines; and therefore such should: be avoided, both publicly and privately; their ministry should not be attended on in the church, or house of God; and they should not be entertained in private houses, and much less caressed: neither bid him God speed; or give him the usual civil form of salutation, as a good day to you, all hail, all health and prosperity attend you, the Lord be with you, and the like. The word used by the Jews was which signifies "happiness"; so it is said (i), what do they salute with? "God speed"; which was forbidden to say to one that was ploughing in the seventh year. The meaning is, that with such no familiar conversation should be had, lest any encouragement should be given them; or it should induce a suspicion in the minds of other saints, that they are in the same sentiments; or it should tend to make others think favourably of them, and be a snare and a stumblingblock to weak Christians. (i) T. Hieros. Sheviith, fol. 35. 2. Vid. Taanith. fol. 64. 2.”
Source
1832
A.D.
Adam Clarke Methodist
1762–1832
“If there come any unto you - Under the character of an apostle or evangelist, to preach in your house; and bring not this doctrine, that Jesus is come in the flesh, and has died for the redemption of the world. Receive him not unto your house - Give him no entertainment as an evangelical teacher. Let him not preach under your roof. Neither bid him God speed - Και χαιρειν αυτῳ μη λεγερε· And do not say, Health to him - do not salute him with Peace be to thee! The usual salutation among friends and those of the same religion in the east is, Salam aleekum, "Peace be to you;" which those of the same religion will use among themselves, but never to strangers, except in very rare cases. This is the case to the present day; and, from what John says here, it was a very ancient custom. We have often seen that peace among the Hebrews comprehended every spiritual and temporal blessing. The words mean, according to the eastern use of them, "Have no religious connection with him, nor act towards him so as to induce others to believe you acknowledge him as a brother."”
Source
1849
A.D.
1774–1849
“Nor say to him, Hail; or peace be to you, God speed you, all hail; or use any form of saluting him, as you would a friend, much less receive or entertain him in your house: this admonition is in general to forewarn persons of the dangers which may arise from a familiarity with heretics, and such as teach evil doctrine. But by this is not forbidden civility, kindness, and a sincere charity for all men, by which we ought to wish and pray for the eternal salvation of every one. I translate Ave by peace be to you, because this was the usual salutation among the Jews, and in those times, as we see in Luke xxiv. and John xx. Bible Text & Cross-references: He recommends walking in truth, loving one another, and to beware of false teachers. 1 The ancient, to the lady Elect, and her children, whom I love in the truth, and not I only, but also all they who have known the truth, 2 For the sake of the truth, which abideth in us, and shall be with us for ever. 3 Grace, mercy, and peace be with you, from God the Father, and from Christ Jesus, the Son of the Father, in truth, and charity. 4 I was exceeding glad, that I found of thy children walking in truth, as we have received a commandment from the Father. 5 And now I beseech thee, lady, not as writing a new commandment to thee, but that which we have had from the beginning, *that we love one another. 6 And this is charity, that we walk according to his commandments. For this is the commandment, that as you have heard from the beginning, you should walk in it: 7 For many seducers are gone out into the world, who confess not that Jesus Christ is come in the flesh: this is a seducer and an antichrist. 8 Look to yourselves, that you lose not the things which you have wrought: but that you may receive a full reward. 9 Every one who recedeth, and continueth not in the doctrine of Christ, hath not God: he that continueth in the doctrine, he hath both the Father and the Son. 10 If any man come to you, and bring not this doctrine, receive him not into the house, nor say to him, Hail. 11 For he that saith to him, Hail, communicateth with his wicked works. 12 Having more things to write unto you, I would not by paper and ink: for I hope that I shall be with you, and speak face to face: that your joy may be full. 13 The children of thy sister Elect salute thee.”
Source
1871
A.D.
1871
“If there come any--as a teacher or brother. The Greek is indicative, not subjunctive; implying that such persons do actually come, and are sure to come; when any comes, as there will. True love is combined with hearty renunciation and separation from all that is false, whether persons or doctrines. receive him not . . . neither bid him God speed--This is not said of those who were always aliens from the Church, but of those who wish to be esteemed brethren, and subvert the true doctrine [GROTIUS]. The greeting salutation forbidden in the case of such a one is that usual among Christian brethren in those days, not a mere formality, but a token of Christian brotherhood.”
Source

Undated

date unknown
date
unknown
Glossa Ordinaria Medieval
“Nor say to him, Hail. Because it seems a sign of consent to his error; for we say this to friends whose works please us. And even if you yourselves were perhaps not deceived, others might still be deceived through such familiarity on your part, who would believe that those men were pleasing to you, and so would believe them.”
Source
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.