'Reason' in the Bible

For if I [merely] preach the gospel, I have nothing to boast about, for I am compelled [that is, absolutely obligated to do it]. Woe to me if I do not preach the good news [of salvation]!

I am speaking as to wise and sensible people; judge [carefully and thoughtfully consider] for yourselves what I say.

Does not common sense itself teach you that if a man has long hair, it is a dishonor to him,

That [careless and unworthy participation] is the reason why many among you are weak and sick, and a number sleep [in death].