They are something that is only between you and God
= = = =
In significant large part, I disagree.
Scripture says: OUT OF THE ABUNDANCE OF THE HEART, THE MOUTH SPEAKS.
I don’t believe we can effectively hide our beliefs for long. They come out our mouths, fingers, actions.
It is not that a Christian is infallible (nobody's perfect!) --- but rather that the sum of his life is a clear testimony to Christ.
We know when we mess up, when we follow that carnal urge (I John 1:5-10.) But when we do, we confess our sins and He is faithful to forgive us and help us get back into the Light.
We are also guilty of some spiritual pride, Quix, some more others less. The saints who are truly humble never brag even about God. Their whole being, what they do and how they act is a divine show, but such are few and far and inbetween.