As a new monk, Father (the title given to all Eastern monks) Nimatullah was assigned by the abbot of the monastery to learn how to bind books. He spent the period of his initial formation in the monastic life in frequent prayer, sometimes passing the night in prayer in the monastery church, praying to the Blessed Sacrament. Kassab made his religious profession of vows on 14 November 1830, after which he was sent to the Monastery of Saints Cyprian and Justina in Kfifan, in the Batroun District, to pursue higher studies in preparation for ordination, which took place on Christmas Day 1833. Nimatullah Al-Hardini founded a free school in Kifkan and later in Bhersaf.