One of Joasaphus' first deeds was severe punishment of Joseph Kurtsevich, Archbishop of Suzdal, for his indecent behaviour. He took part in reviving Moscow's printing activities. They published 23 ecclesiastic books under his supervision. In 1636, Joasaphus wrote "Память" (Pamyat, or memo), in which he urged Russian clergymen to settle all the discords between themselves. He also published a piece called "Лестница властям" (Lestnitsa vlastyam, or Hierarchy of power), in which he explained the hierarchy of clergymen during divine services and sobors. Also, Joasaphus published the so-called "Требник" (Trebnik, or book of prayers) with a supplement of Philaret's resolutions and decrees.