 On 16 August 1978 Koubetch made perpetual vows in the Basilian Order.From 1978 to 1981 he studied theology at the Pontifical University of Saint Anselm in Rome.On 12 April 1981 in Rome, he was ordained a deacon (by Archbishop Miroslav Marusin, and on 6 December 1981 Koubetch received ordination by bishop Efraím Basílio Krevey.