10 distinct Greek words appear in this verse.

• Light and Darkness
• Obedience and Disobedience
• Sin

3 passages from patristic writers, Reformers, and church catechisms citing this verse.

• 1Cor 5:9 — I wrote unto you in an epistle not to company with fornicators:
• 1Cor 5:9 — I wrote unto you in an epistle not to company with fornicators:
• 1Cor 10:20 — But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.
• 1Kgs 22:4 — And he said unto Jehoshaphat, Wilt thou go with me to battle to Ramothgilead? And Jehoshaphat said to the king of Israel, I am as thou art, my people as thy people, my horses as thy horses.
• 1Thess 5:7 — For they that sleep sleep in the night; and they that be drunken are drunken in the night.
• 1Tim 5:20 — Them that sin rebuke before all, that others also may fear.
• 1Tim 5:22 — Lay hands suddenly on no man, neither be partaker of other men’s sins: keep thyself pure.
• 1Tim 6:5 — Perverse disputings of men of corrupt minds, and destitute of the truth, supposing that gain is godliness: from such withdraw thyself.
• 2Chr 19:2 — And Jehu the son of Hanani the seer went out to meet him, and said to king Jehoshaphat, Shouldest thou help the ungodly, and love them that hate the LORD? therefore is wrath upon thee from before the
• 2Cor 6:14 — Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
• 2Cor 7:11 — For behold this selfsame thing, that ye sorrowed after a godly sort, what carefulness it wrought in you, yea, what clearing of yourselves, yea, what indignation, yea, what fear, yea, what vehement des
• 2John 1:10 — If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed:
• 2John 1:11 — For he that biddeth him God speed is partaker of his evil deeds.
• 2Thess 3:6 — Now we command you, brethren, in the name of our Lord Jesus Christ, that ye withdraw yourselves from every brother that walketh disorderly, and not after the tradition which he received of us.
• 2Thess 3:14 — And if any man obey not our word by this epistle, note that man, and have no company with him, that he may be ashamed.
• 2Tim 3:5 — Having a form of godliness, but denying the power thereof: from such turn away.
• 2Tim 3:16 — All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
• 2Tim 4:2 — Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.
• Deut 20:18 — That they teach you not to do after all their abominations, which they have done unto their gods; so should ye sin against the LORD your God.
• Eph 4:22 — That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts;
• Eph 5:7 — Be not ye therefore partakers with them.
• Eph 5:7 — Be not ye therefore partakers with them.
• Gal 6:8 — For he that soweth to his flesh shall of the flesh reap corruption; but he that soweth to the Spirit shall of the Spirit reap life everlasting.
• Gen 20:16 — And unto Sarah he said, Behold, I have given thy brother a thousand pieces of silver: behold, he is to thee a covering of the eyes, unto all that are with thee, and with all other: thus she was reprov
• Gen 49:5 — Simeon and Levi are brethren; instruments of cruelty are in their habitations.
• Hos 4:15 — Though thou, Israel, play the harlot, yet let not Judah offend; and come not ye unto Gilgal, neither go ye up to Bethaven, nor swear, The LORD liveth.
• Isa 3:10 — Say ye to the righteous, that it shall be well with him: for they shall eat the fruit of their doings.
• Isa 29:21 — That make a man an offender for a word, and lay a snare for him that reproveth in the gate, and turn aside the just for a thing of nought.
• Isa 33:15 — He that walketh righteously, and speaketh uprightly; he that despiseth the gain of oppressions, that shaketh his hands from holding of bribes, that stoppeth his ears from hearing of blood, and shuttet
• Isa 52:11 — Depart ye, depart ye, go ye out from thence, touch no unclean thing; go ye out of the midst of her; be ye clean, that bear the vessels of the LORD.
• Jer 15:17 — I sat not in the assembly of the mockers, nor rejoiced; I sat alone because of thy hand: for thou hast filled me with indignation.
• Jer 16:8 — Thou shalt not also go into the house of feasting, to sit with them to eat and to drink.
• Job 24:13 — They are of those that rebel against the light; they know not the ways thereof, nor abide in the paths thereof.
• Job 24:16 — In the dark they dig through houses, which they had marked for themselves in the daytime: they know not the light.
• John 3:19 — And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil.
• John 3:20 — For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved.
• John 18:18 — And the servants and officers stood there, who had made a fire of coals; for it was cold: and they warmed themselves: and Peter stood with them, and warmed himself.
• Josh 6:18 — And ye, in any wise keep yourselves from the accursed thing, lest ye make yourselves accursed, when ye take of the accursed thing, and make the camp of Israel a curse, and trouble it.
• Josh 23:7 — That ye come not among these nations, these that remain among you; neither make mention of the name of their gods, nor cause to swear by them, neither serve them, nor bow yourselves unto them:
• Judg 6:31 — And Joash said unto all that stood against him, Will ye plead for Baal? will ye save him? he that will plead for him, let him be put to death whilst it is yet morning: if he be a god, let him plead fo