Usually, sure. Always exceptions.
I'll assume you have a concept of God. You have to believe this concept is correct and correct for everyone?
The ultimate reality, "God". Are there many wrong or bad concepts about God?
What gets me is believers are usually certain about God, whatever their concept of God is. Then they generally assume this God is the truth and is the truth for everyone.
If it is not, and everyone has their own God, then whatever you feel is right, about God, go with it. Reality doesn't work that way but belief in God seems to.