Arabia was idolatrous when, six centuries after Jesus, Muhammad introduced the worship of the God of Abraham, of Ishmael, of Moses, and Jesus. The Ariyans and some other sects had disturbed the tranquility of the east by agitating the question of the nature of the Father, the son, and the Holy Ghost. Muhammad declared that there was none but one God who had no father, no son and that the trinity imported the idea of idolatry.