'Discrediting' in the Bible

But when some were becoming hardened and disobedient [to the word of God], discrediting and speaking evil of the Way (Jesus, Christianity) before the congregation, Paul left them, taking the disciples with him, and went on holding daily discussions in the lecture hall of Tyrannus [instead of in the synagogue].

sound and beyond reproach in instruction, so that the opponent [of the faith] will be shamed, having nothing bad to say about us.