Of the nine fundamental laws of that Priscillian, whose widespread heresy evoked from the synod of Saragossa (418) the canon, " No one shall fast on Sunday, nor may any one absent himself from church during Lent and hold a festival of his own," appears, on the question of fasting, not to have differed from the Encratites and various other sects of Manichean tendency (c. 406).