'Self condemned' in the Bible

But the person who has doubts about eating [a certain food] is self-condemned if he [goes ahead and] eats it, because his action is not based on faith [i.e., if he lacks the conviction that he is doing what is right]. And whatever is not done with such a conviction is a sin.

But when Cephas came to Antioch I resisted him to his face, because he stood self-condemned.

For you know that a person like this is corrupt and keeps on sinning, being self-condemned.