The Matthew passage conveys a downright opposite message to that of Orgon. It means that Tartuffe's piety is a spectacle, a theater show for Orgon and the masses to see. Tartuffe pompously prayed in church before the congregation (and Orgon, of course), kissing the ground all the time, pathetically sighing and demonstrating his piety very loudly.
Explanation is in a file
bit.
ly/3a8Nt8n
Do you have any question? If so please make sure you explain your question, so that we could answer :)