 In 1993 he received his licentiate in moral theology at the University of São Paulo and was professor of theology at the Catholic Theological Institute in Curitiba.From 1996 to 2000 he was vicar of the parish of Ponta Grossa, consultor in provincial constituencies of Basilian fathers.In 2000 Koubetch take care of pastoral parishes in Antonio Olinto, Campina, Santos Andrade, Miko Magro and São João and received a doctorate in moral theology at the Pontifical University of Rio de Janeiro.