But this thou hast - This thou hast that I approve of, or that I can commend.
That thou hatest the deeds of the Nicolaitans - Greek, "works" (τὰ ἔργα ta erga). The word "Nicolaitanes" occurs only in this place, and in the Revelation 2:15 verse of this chapter. From the reference in the latter place it is clear that the doctrines which they held prevailed at Pergamos as well as at Ephesus; but from neither place can anything now be inferred in regard to the nature of their doctrines or their practices, unless it be supposed that they held the same doctrine that was taught by Balaam. See the notes on Revelation 2:15. From the two passages, compared with each other, it would seem that they were alike corrupt in doctrine and in practice, for in the passage before us their deeds are mentioned, and in Revelation 2:15 their doctrine. Various conjectures, however, have been formed respecting this class of people, and the reasons why the name was given to them:
I. In regard to the origin of the name, there have been three opinions:
(1) That mentioned by Irenaeus, and by some of the other fathers, that the name was derived from Nicolas, one of the deacons ordained at Antioch, Acts 6:5. Of those who have held this opinion, some have supposed that it was given to them because he became apostate and was the founder of the sect, and others because they assumed his name, in order to give the greater credit to their doctrine. But neither of these suppositions rests on any certain evidence, and beth are destitute of probability. There is no proof whatever that Nicolas the deacon ever apostatized from the faith, and became the founder of a sect; and if a name had been assumed, in order to give credit to a sect and extend its influence, it is much more probable that the name of an apostle would have been chosen, or of some other prominent man, than the name of an obscure deacon of Antioch.
(2) Vitringa, and most commentators since his time, have supposed that the name Nicolaitanes was intended to be symbolical, and was not designed to designate any sect of people, but to denote those who resembled Balaam, and that this word is used in the same manner as the word "Jezebel" in Revelation 2:20, which is supposed to be symbolical there. Vitringa supposes that the word is derived from νίκος nikos, "victory," and λαός laos, "people," and that thus it corresponds with the name Balaam, as meaning either בּצל צם bàal ̀am, "lord of the people," or בּלץ צם baalà ̀am, "he destroyed the people"; and that, as the same effect was produced by their doctrines as by those of Balaam, that the people were led to commit fornication and to join in idolatrous worship, they might be called "Balaamites" or "Nicolaitanes," that is, corrupters of the people. But to this it may be replied:
(a) that it is far-fetched, and is adopted only to remove a difficulty;
(b) that there is every reason to suppose that the word used here refers to a class of people who bore that name, and who were well known in the two churches specified;
(c) that in Revelation 2:15 they are expressly distinguished from those who held the doctrine of Balaam, Revelation 2:14, "So hast thou also (καὶ kai) those that hold the doctrine of the Nicolaitanes."
(3) it has been supposed that some person now unknown, probably of the name Nicolas, or Nicolaus, was their leader, and laid the foundation of the sect. This is by far the most probable opinion, and to this there can be no objection. It is in accordance with what usually occurs in regard to sects, orthodox or heretical, that they derive their origin from some person whose name they continue to bear; and as there is no evidence that this sect prevailed extensively, or was indeed known beyond the limits of these churches, and as it soon disappeared, it is easily accounted for that the character and history of the founder were so soon forgotten.
II. In regard to the opinions which they held, there is as little certainty. Irenaeus (Adv. Haeres. i., 26) says that their characteristic tenets were the lawfulness of promiscuous sexual intercourse with women, and of eating things offered to idols. Eusebius (Hist. Eccl. iii., 29) states substantially the same thing, and refers to a tradition respecting Nicolaus, that he had a beautiful wife, and was jealous of her, and being reproached with this, renounced all intercourse with her, and made use of an expression which was misunderstood, as implying that illicit pleasure was proper. Tertullian speaks of the Nicolaitanes as a branch of the Gnostic family, and as, in his time, extinct. Mosheim (De Rebus Christian Ante. Con. section 69) says that "the questions about the Nicolaitanes have difficulties which cannot be solved." Neander (History of the Christian Religion, as translated by Torrey, vol. i, pp. 452, 453) numbers them with Antinomians; though he expresses some doubt whether the actual existence of such a sect can be proved, and rather inclines to an opinion noticed above, that the name is symbolical, and that it is used in a mystical sense, according to the usual style of the Book of Revelation, to denote corrupters or seducers of the people, like Balaam. He supposes that the passage relates simply to a class of persons who were in the practice of seducing Christians to participate in the sacrificial feasts of the pagans, and in the excesses which attended them - just as the Jews were led astray of old by the Moabites, Numbers. 25.
What was the origin of the name, however, Neander does not profess to be able to determine, but suggests that it was the custom of such sects to attach themselves to some celebrated name of antiquity, in the choice of which they were often determined by circumstances quite accidental. He supposes also that the sect may have possessed a life of Nicolas of Antioch, drawn up by themselves or others from fabulous accounts and traditions, in which what had been imputed to Nicolas was embodied. Everything, however, in regard to the origin of this sect, and the reason of the name given to it, and the opinions which they held, is involved in great obscurity, and there is no hope of throwing light on the subject. It is generally agreed, among the writers of antiquity who have mentioned them, that they were distinguished for holding opinions which countenanced gross social indulgences. This is all that is really necessary to be known in regard to the passage before us, for this will explain the strong language of aversion and condemnation used by the Saviour respecting the sect in the epistles to the Churches of Ephesus and Pergamos.
Which I also hate - If the view above taken of the opinions and practices of this people is correct, the reasons why he hated them are obvious. Nothing can be more opposed to the personal character of the Saviour, or to his religion, than such doctrines and deeds.

The deeds of the Nicolaitanes - These were, as is commonly supposed, a sect of the Gnostics, who taught the most impure doctrines, and followed the most impure practices. They are also supposed to have derived their origin from Nicolas, one of the seven deacons mentioned Acts 6:5 (note). The Nicolaitanes taught the community of wives, that adultery and fornication were things indifferent, that eating meats offered to idols was quite lawful; and mixed several pagan rites with the Christian ceremonies. Augustine, Irenaeus, Clemens Alexandrinus, and Tertullian, have spoken largely concerning them. See more in my preface to 2d Peter, where are several particulars concerning these heretics.

But this thou hast, that thou hatest the deeds of the Nicolaitans,.... Though these Christians had left their first love, yet they bore an hatred to the filthy and impure practices of some men, who were called "Nicolaitans"; who committed fornication, adultery, and all uncleanness, and had their wives in common, and also ate things offered to idols; who were so called, as some think (c), from Nicolas of Antioch, one of the seven deacons in Acts 6:5; though as to Nicolas himself, it is said (d), that he lived with his own lawful married wife, and no other, and that his daughters continued virgins all their days, and his son incorrupt; and that these men, so called, only shrouded themselves under his name, and abused a saying or action of his, or both, to patronize their wicked deeds: he had used to advise , by which he meant a restraining of all carnal and unlawful lusts; but these men interpreted it of an indulgence in them, and so gave themselves up to all uncleanness; and whereas, he having a beautiful wife, and being charged with jealousy, in order to clear himself of it, he brought her forth, and gave free liberty to any person to marry her as would; which indiscreet action of his these men chose to understand as allowing of community of wives. Dr. Lightfoot conjectures, that these Nicolaitans were not called so from any man, but from the word "Nicolah", "let us eat", which they often used to encourage each other to eat things offered to idols. However this be, it is certain that there were such a set of men, whose deeds were hateful; but neither their principles nor their practices obtained much in this period of time, though they afterwards did; see Revelation 2:15. Professors of the Christian religion in general abhorred such impure notions and deeds, as they were by Christ:
which also I hate; all sin is hateful to Christ, being contrary to his nature, to his will, and to his Gospel; and whatever is hateful to him should be to his people; and where grace is, sin will be hateful, both in themselves and others; and men's deeds may be hated when their persons are not; and hatred of sin is taken notice of by Christ, with a commendation,
(c) Vid. Irenaeum adv. Haeres, l. 1. c. 27. & Tertull. de Praescript. Haeret. c. 46, 47. (d) Clement. Alex. Strom. l. 3. p. 436. & Euseb, Hist. Eccl. l. 2. c. 29.

But--How graciously, after necessary censure, He returns to praise for our consolation, and as an example to us, that we would show, when we reprove, we have more pleasure in praising than in fault-finding.
hatest the deeds--We should hate men's evil deeds, not hate the men themselves.
Nicolaitanes--IRENÆUS [Against Heresies, 1.26.3] and TERTULLIAN [Prescription against Heretics, 46] make these followers of Nicolas, one of the seven (honorably mentioned, Acts 6:3, Acts 6:5). They (CLEMENT OF ALEXANDRIA [Miscellanies, 2.20 3.4] and EPIPHANIUS [Heresies, 25]) evidently confound the latter Gnostic Nicolaitanes, or followers of one Nicolaos, with those of Revelation. MICHAELIS' view is probable: Nicolaos (conqueror of the people) is the Greek version of Balaam, from Hebrew "Belang Am," "Destroyer of the people." Revelation abounds in such duplicate Hebrew and Greek names: as Apollyon, Abaddon: Devil, Satan: Yea (Greek, "Nai"), Amen. The name, like other names, Egypt, Babylon, Sodom, is symbolic. Compare Revelation 2:14-15, which shows the true sense of Nicolaitanes; they are not a sect, but professing Christians who, like Balaam of old. tried to introduce into the Church a false freedom, that is, licentiousness; this was a reaction in the opposite direction from Judaism, the first danger to the Church combated in the council of Jerusalem, and by Paul in the Epistle to Galatians. These symbolical Nicolaitanes, or followers of Balaam, abused Paul's doctrine of the grace of God into a plea for lasciviousness (2-Peter 2:15-16, 2-Peter 2:19; Jde 1:4, Jde 1:11 who both describe the same sort of seducers as followers of Balaam). The difficulty that they should appropriate a name branded with infamy in Scripture is met by TRENCH: The Antinomian Gnostics were so opposed to John as a Judaizing apostle that they would assume as a name of chiefest honor one which John branded with dishonor.

But thou hast this - Divine grace seeks whatever may help him that is fallen to recover his standing. That thou hatest the works of the Nicolaitans - Probably so called from Nicolas, one of the seven deacons, Acts 6:5. Their doctrines and lives were equally corrupt. They allowed the most abominable lewdness and adulteries, as well as sacrificing to idols; all which they placed among things indifferent, and pleaded for as branches of Christian liberty.