Father Stanisław Wilczewski Ph.D. became famous as a splendid speech therapist, working
theoretically and practically for the sake of the culture of the living word and as an esteemed preacher.
This paper aims at presentation of his activities that give testimony to his attention to the quality of the
preached words and preaching in general. Wilczewski taught future priests a hygiene of voice, which
should be communicative with an internal involvement and the experience of the preaching the Word
of God and the preaching action. He was one of the most outstanding preachers in the history of the
diocese of Katowice.