My point is more general. You should not assume that everything is in the Bible. You are not a Muslim and Bible is not Koran.
The Church is not based on the Bible but Bible is based on the Church. Old Testament was written by the Church ie by the Jews. New Testament was written by the New Church - early Christians. But not everything is included there - for example "there are also many other things which Jesus did, the which, if they should be written every one, I suppose that even the world itself could not contain the books that should be written."(Jn:21:25)
I, and every other Evangelical Christian could not possibly disagree with you more.
The Bible is the rock solid foundation of everything we believe. It's the check and balance against ALL FALSE RELIGION.
The reason I'm not a Jehovah Witness or Christian Scientist or Mormon OR ROMAN CATHOLIC is because what they say does not hold up against the Bible.
Look at the epic struggle I had today with catholic apologist Polycarp trying to get him to simply state what he believes regarding a man named James. He couldn't/wouldn't do it.
The Bible is God's gift to the World because, to put it somewhat crassly, it cuts through all the B.S. that the world tries to sling. No false religion can stand up to the Bible. Thank God.