The passage in Revelation ch. 2, regarding the Nicolatians actually does tie to the original laws.
Revelation 2:14 But I have a few things against thee, because thou hast there them that hold the doctrine of Balaam, who taught Balac to cast a stumblingblock before the children of Israel, to eat things sacrificed unto idols, and to commit fornication.
Revelation 2:15 So hast thou also them that hold the doctrine of the Nicolaitanes, which thing I hate.
The laws mentioned are the same laws that Paul and the Apostles gave to the gentile believers as recorded in Acts. Ch. 15
Act 15:19 Wherefore my sentence is, that we trouble not them, which from among the Gentiles are turned to God:
Act 15:20 But that we write unto them, that they abstain from pollutions of idols, and from fornication, and from things strangled, and from blood.
Act 15:21 For Moses of old time hath in every city them that preach him, being read in the synagogues every sabbath day.
Interesting study Just me and just us two,
I was looking at this subject a few years ago and the chapter, (Rev 2) is not difficult to understand. The chapter does not contain a lot of symbolic writing, it's clear-cut.
It starts with mentioning Jezebel and the doctrine that she taught. And that doctrine is contained in the OT. It's the reason God sent Elijah to confront the prophets of Baal and to turn the hearts of the people back to God. Why? Because of false teachings.
Revelation 2:20 Notwithstanding I have a few things against thee, because thou sufferest that woman Jezebel, which calleth herself a prophetess, to teach and to seduce my servants to commit fornication, and to eat things sacrificed unto idols. Revelation 2:21 And I gave her space to repent of her fornication; and she repented not.
I don't think it's so much about "who," the nicolatians were/are, but the doctrine itself. Shown with the example of Jezebel, and Baalam. (As you showed early on in the message string.) It is absolutely biblical.
The doctrine's mentioned in all three cases in Rev 2, are the same doctrines.
"Baalam is mentioned three times in the NT, and each mention directly ties to the OT. It isn't possible to read the references and think that it's some new NT reference for new covenant believers. I haven't found any NT verses that mention an all new Balaam....
2 Peter 2:14 Having eyes full of adultery, and that cannot cease from sin; beguiling unstable souls: an heart they have exercised with covetous practices; cursed children:
2 Peter 2:15 Which have forsaken the right way, and are gone astray, following the way of Balaam the son of Bosor, who loved the wages of unrighteousness;
Jude 1:11 Woe unto them! for they have gone in the way of Cain, and ran greedily after the error of Balaam for reward, and perished in the gainsaying of Core.
Revelation 2:14 But I have a few things against thee, because thou hast there them that hold the doctrine of Balaam, who taught Balac to cast a stumblingblock before the children of Israel, to eat things sacrificed unto idols, and to commit fornication.
All three mentions in the book of Rev speak about the same doctrines, so I can see how the examples of Baalam would tie directly to the doctrine of the Nicolatians. The two laws mentioned in Revelation ch. 2, are found throughout the entire bible.