From the mind of men where some/many have turned away from God, both within the RC denomination and the protestant denominations as well.
Within God's assembly there is only one church, but with many different flavours as the different assemblies work through the various giftings that they have been given.
The Protestant Church came about because of the "scam" of the RC Church in the 1500's to raise money for the RC church through the selling of indulgences to their congregations for the forgiveness of their sins.
To be considered to be a part of the protestant denominations the following three principles were required: -
1. Scripture alone
2. Justification by faith alone
3. Universal priesthood of believers.
One of the hallmarks of the development of the Protestant movement away from the Latin Vulgate Bible was the translation of the "scriptures" into the local languages of the people so that all would be able to read the scriptures for themselves in their own language instead of having it read to them in Latin by the RC priests. It is credited to Waldo in the 1100's that the first local language translations of the Scriptures were created and this is also true of the reformation fathers as well, in that they too created local language translations for the areas of their influence.
The "local language scriptures" had the effect of creating a unified national language at that time.
The differentiations of the Protestant denominations tended to come out of the "reformation fathers" within their respective areas of influence and the developed theologies that grew out of their thinking.
This is but a thumbnail ballpark of how the various denominations developed and the differences between the protestant denominations have come about.
Shalom
Please explain your 16th century novelty of justification by faith alone ?
Please explain this in light of “faith Alone”?????
Matt 25
33 And he shall set the sheep on his right hand, but the goats on the left.
34 Then shall the King say unto them on his right hand, Come, ye blessed of my Father, inherit the kingdom prepared for you from the foundation of the world:
35 For I was an hungred, and ye gave me meat: I was thirsty, and ye gave me drink: I was a stranger, and ye took me in:
36 Naked, and ye clothed me: I was sick, and ye visited me: I was in prison, and ye came unto me.
37 Then shall the righteous answer him, saying, Lord, when saw we thee an hungred, and fed thee? or thirsty, and gave thee drink?
38 When saw we thee a stranger, and took thee in? or naked, and clothed thee?
39 Or when saw we thee sick, or in prison, and came unto thee?
40 And the King shall answer and say unto them, Verily I say unto you, Inasmuch as ye have done it unto one of the least of these my brethren, ye have done it unto me.
41 Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels:
42 For I was an hungred, and ye gave me no meat: I was thirsty, and ye gave me no drink:
43 I was a stranger, and ye took me not in: naked, and ye clothed me not: sick, and in prison, and ye visited me not.
44 Then shall they also answer him, saying, Lord, when saw we thee an hungred, or athirst, or a stranger, or naked, or sick, or in prison, and did not minister unto thee?
45 Then shall he answer them, saying, Verily I say unto you, Inasmuch as ye did it not to one of the least of these, ye did it not to me.
46 And these shall go away into everlasting punishment: but the righteous into life eternal.
Notice: 46 the righteous, really righteous!