Who were the Nicolaitans?, and what are their Doctrine and Deeds ?

In the first address, to the Ephesians, the Lord says, 
"But this thou hast, that thou hatest 
the deeds of the Nicolaitanes, which I also hate" [2:6]. 

Here it is more than the "deeds" of the Nicolaitanes. 
There are now not merely "deeds," but "doctrine."

And the Church, instead of repudiating it, was holding with it.

In the Ephesian days, they hated the deeds of the Nicolaitanes; 
but in Pergamos, they "had," and did not reprobate, 
those who held the doctrine.

"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 stumbling block 
before the children of Israel, to eat things sacrificed unto idols, 
and to commit fornication. 

Revelation [2:14,15]

They, like the Gnostics and other false teachers, 
abused the doctrine of grace and tried to introduce 
licentiousness in its place 

[2 Peter 2:15, 19; Jude 1:4]. 

Jesus commends the church of Ephesus for hating the deeds of the Nicolaitans 

[Revelation 2:6].

Nicolaitism - or The Rise and Growth of the Clerisy

The Church of Nicolaitanes [ Universal Order of Freemasonry 
– 13 members of the Illuminati/Sanhedrin ]

What you never knew about the Pharisees