People often have an authority-based basis for what they believe. That is, we take something to be true because some “authority” has deemed it so – a pastor, guru, tradition, spiritual leader, teacher, author, etc. But consider the possibility of having an evidence-based basis for truth. Try it and see for yourself.
For example, Jesus said that knowing the truth will set you free. If your brand of Christianity (whoever or whatever the “authority” of it might be) is not setting you free, then consider the possibility that you have missed the truth Jesus was talking about.
People will often say, “My authority is the Bible.” It would be more accurate for them to say, “My authority is what they told me at church the Bible means.”
It’s strange that people don’t respond to the truth that is clearly self-evident, and instead they respond to what they are told.