'So called' in the Bible

Now what I really meant was for you to stop associating with any so-called brother, if he is sexually immoral, a greedy grasper, an idolater, a slanderer, a drunkard, or a swindler -- with such a person you must even stop eating.

For even if there are so-called gods in heaven or on earth -- as there are, indeed, a vast number of gods and lords --

Yes, the overscrupulous brother, for whom Christ died, is ruined by your so-called knowledge.