Negative answer expected. Common in Paul and characteristic of the diatribe. Emphatic position of this verb. Actions speak louder than words even in the case of the professional wise man. This is a condition of the first class.
Wisdom is essential for the teacher.
Boasting arrogance disproves the possession of wisdom. Lying against the truth is futile. All true wisdom comes from God. The steps are cheap, paltry, evil. First in rank and time.