Where is that belief in the Bible?
Again, your question is based on a false premise. I’d gladly explain why that is, if you want to know.
Or you can keep making assumptions and getting nowhere. Up to you.
1 Corinthians 4:6 Now, brothers and sisters, I have applied these things to myself and Apollos for your benefit, so that you may learn from us the meaning of the saying, "Do not go beyond what is written." Then you will not be puffed up in being a follower of one of us over against the other.