Do priests take vows?
Priests who belong to a religious order (like the Benedictines, Dominicans and Franciscans) take three vows:  poverty, chastity and obedience.  Diocesan priests take no vows, but during the ordination ceremony they make three promises:  prayer, celibacy and obedience.  It is also expected that diocesan priests will lead a life of simplicity consonant with the people they serve.