Paul is, for the most part today by us who profess Christianity, respected as a great man of God, but during his life, he was not so well respected by many preachers, especially those of Jewish decent. Paul differed in matters of faith with many Jewish Christians. Paul preached that salvation is achieved through Christ in obedient faith to the gospel. Those that opposed him taught that the Gentile Christian, in order to fully attain salvation, must submit to the regulations and rituals of the Law of Moses, most particularly circumcision. Signs of this conflict mark much of Paul's writings to the early church.