This is what I learnt from the teachings:
The doctrines of the lord says we should love people that are attending other churches or people that belongs to other doctrines.The bible says we should not judge others. We are advise not to join a church that is evil, churches that allow their members to drink or commit fornication are the kind of churches that are evil before God. Members of the true church are advised to do good to others and not do evil to them.
If someone in the church does not want to be corrected we are advise to flee from the person or we can report the person to the elders in the church. All evil works are prohibited in the church of God. If they have been corrected for doing the wrong thing and they remain persistent we are advised to expel them from the church of God.
The true church commanded us not to oppress our parents, or our siblings , we must do good to our spouse, our parent, our children, our siblings including our enemy. With a good behavior we can always win souls to God. God is pleased with us when we dont do wicked to others. For example you are doing good to your parents and siblings God will be please with you.
God loves a christian who win soul to his kingdom, if you are able to win one soul God will be please with you. It is very easy to please God unlike pleasing human being. God is not pleased with people who commit adultery, the bible says God forbid people who desire other peoples wife. Some churches says a man can marry many wives but GOD commanded we men not to marry more than one wife and a woman must not marry more than one husband, anything that doesnt align with this is what God term as adultery in the holy book.
As a Christian we must be able to differentiate between what is right and what is wrong. There are preachers who are workers of hell, so we have to be careful the kind of churches we go to. There are churches that teach their members how to kill, all these churches are not the true church God is talking about.