On account of his growing fame, he decided to withdraw as a hermit into the mountain caves monastery at Pochayev in Kremenets district.
Having joined the monastery in 1604, Job was eventually elected hegumen.

Job was quiet, brief in words, and the only sound heard from his lips was the Jesus prayer.
For many days and weeks he would retreat into his locked cave, so narrow that entry is difficult, and so small that it was impossible to sit, stand or lie conveniently.
From the long periods of kneeling, his knees were covered with wounds, and wearing knee-marks into the rock floor.
His disciple Dosyfey recounts that he saw supernatural light coming from the depths of the cave, shining for two hours onto the opposite side of the church.
Dosyfey records that at the sight was terrified and fell to the ground.

Job introduced strict discipline and other reforms of monastic life.
During his time in office, the monastery had to fend off incessant attacks by Andrzej Firlej, Castellan of Belz, who sued the monks over his grandmother's bequest of extensive lands and a miracle-working icon of the Mother of God.
In 1623, Firlej raided the monastery, taking the holy icon with him and keeping it until 1641, when a court decision finally restituted the icon to the monks.

In 1628 Job attended the Synod of Kiev, called to defend the Orthodox Church against Uniatism.

Sometime after 1642, he was tonsured into the Great Schema, and received the new monastic name of John.
On account of his growing fame, he decided to withdraw as a hermit into the mountain caves monastery at Pochayev in Kremenets district. Having joined the monastery in 1604, Job was eventually elected hegumen.
Job was quiet, brief in words, and the only sound heard from his lips was the Jesus prayer. For many days and weeks he would retreat into his locked cave, so narrow that entry is difficult, and so small that it was impossible to sit, stand or lie conveniently. From the long periods of kneeling, his knees were covered with wounds, and wearing knee-marks into the rock floor. His disciple Dosyfey recounts that he saw supernatural light coming from the depths of the cave, shining for two hours onto the opposite side of the church. Dosyfey records that at the sight was terrified and fell to the ground.
Job introduced strict discipline and other reforms of monastic life. During his time in office, the monastery had to fend off incessant attacks by Andrzej Firlej, Castellan of Belz, who sued the monks over his grandmother's bequest of extensive lands and a miracle-working icon of the Mother of God. In 1623, Firlej raided the monastery, taking the holy icon with him and keeping it until 1641, when a court decision finally restituted the icon to the monks.
In 1628 Job attended the Synod of Kiev, called to defend the Orthodox Church against Uniatism.
Sometime after 1642, he was tonsured into the Great Schema, and received the new monastic name of John.
Job of Pochayev