I believe tradition, however good, must always be checked and reevaluated by study of the Bible.
Reason is the use of logic to understand and explain the inner structure of a model.
Logic can be used to see how another model works, and so help us contrast it with our own. But logic only works within a logical system - it cannot prove that another model is wrong by some superior logic. For example logic could question the inner structure of say the Taoism of Lao Tzu. We can also compare the result of living that way with learning to love by the Holy Spirit. Taoism if wrong.