How do Jesuit priests differ from Diocesan priests?
Both are fully priests in the Roman Catholic Church. The diocesan priest promises celibacy and vows obedience to his bishop, but he is able to own a car and a home; he is also able to assist his family and relatives financially. Most diocesan priests labour in parishes. Their place of assignment is usually in their own particular diocese, perhaps not far from their own home town. The Jesuit takes the three vows of religious life: poverty, chastity, and obedience. He owns nothing by himself, but lives a common life with his Jesuit companions. He usually lives not by himself but in a Jesuit community. He most directly obeys his religious superior and receives whatever assignment the local ordinary — bishop — of the diocese in which he resides desires that a Jesuit takes up from his religious superior. If he works in a diocesan ministry, he receives his assignment from his Jesuit Superior who works collaboratively with the local bishops in such matters.