When it comes to religion, nobody will ever claim that theirs are not authentic. The question is, How do you know that their doctrine is from God? The answer is very simple and obvious. The evidence can seen clearly by the eye.
John 7:17 If anyone wills to do His will, he shall know concerning the doctrine, whether it is from God or whether I speak on My own authority.
The doctrine is already written but many are selective on what they are going to teach. May be because the practice is in existence since birth and introducing a new law will harvest disagreements from all sectors of society.
Details below are discussed already in my previous posts but I find it necessary to mention it again.
The Man with long hair is a disgrace unto him but the woman with long hair is her covering or protection against bad angels.
1 Corinthians 11:14-15 Does not even nature itself teach you that if a man has long hair, it is a dishonor to him? But if a woman has long hair, it is a glory to her; for her hair is given to her for a covering.
It is a hair covering & definitely it's not a hat, veil, turban, cap or anything that can be worn on the head. Therefore, cutting the hair of the woman is removing her covering or protection.
1 Corinthians 11:10 For this reason the woman ought to have a symbol of authority on her head, because of the angels.
God want women to get in there with the men in humility, not primping before a mirror or chasing the latest fashions but doing something beautiful for God and becoming beautiful doing it. Imagine a woman going to Church with protruding cleavage, short shorts, backless & exposing her navel or nipple to arouse the desire of men.
Announce this doctrine in a congregation then enforce it and let's see how many are left.1 Timothy 2:9 in like manner also, that the women adorn themselves in modest apparel, with propriety and moderation, not with braided hair or gold or pearls or costly clothing,
James 2:10 For whoever shall keep the whole law, and yet stumble in one point, he is guilty of all.