What does it mean to be a true Christian? By definition, true Christianity means that our only authority is Jesus. Matthew 28:18. For this reason some Christians do not believe the entire Bible is necessary for salvation. The Bible says that Jesus has the words of eternal life. John 6:67-69 Therefore when passages in the Bible do not harmonize with what Jesus taught, Christians should always be faithful to Jesus.
Christians do not worship God by being loyal to any religion. They are loyal only to God. Trusting in a an organization as much as we trust in God could be seen by Jesus as a modern day form of idolatry. 
According to the Bible, when Christians are baptized, they become spirit-directed individuals. That's why true Christians have a personal relationship with God. They are baptized in the name of the Father, Son, and the Holy Spirit.
When a Christian says they 'belong to XYZ church', it means that they they prefer that church. It doesn't mean they can't go to other churches. It also doesn't need to mean they agree with everything their church says. True Christian churches do not have judicial committees because Christians spirit-directed individuals. True Christian religions have no authority over what individual Christians believe. Christians are not spirit-directed by their church.
All Christians have direct access to God's Holy Spirit. True Christians are free to exercise their conscience in all matters. They do not look to an organization for guidance and direction. God's holy spirit guides individual Christians and their only authority is Jesus. Matthew 28:18
We know this to be true because:
1. Obedience to an organization that claims to carry the authority of Jesus, could be viewed by God as a modern day form of idolatry. According to the Watchtower Feb 15, 2009, Jehovah's Witnesses are advised to put their complete trust in the organization.