Nope. X doesn't follow from Y at all. Instead, Y is
simply part of X.
As you said yourself: "god" because "bible" and "bible" because "god".
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Nope, not at all.
For example: I believe that jumping from the Eiffel Tower without a parachute, is a serious health hazard. Not because of "other beliefs" that I hold... but because of the objective empirical FACTS of physics.
See, some people consider it rather important to be rationally justified in ones beliefs - which is impossible to do if your justification for believing X, is simply "because I also believe Y".
For superstitious beliefs (like creationism, astrology, etc), that is correct.
It's also why such beliefs are irrational.
When you need to support your beliefs with other mere beliefs, then you end up in GIGO town (= garbage in, garbage out)
Nope.
First, I don't
believe in evolution.
Instead, I
provisionally accept evolution as
the best testable explanation that accounts for all the data.
And my acceptance of it is entirely justified by my understanding of the mechanism and my actual knowledge and understanding of the evidence and testability thereof.
At no point have I
ever justified my
acceptance of biology with "because scientists say so!".