Their messianism is based around Psalm 110, and they were vehemently opposed to gentile judaizers whose new moons and feasts petrines believed were abhorrent to true Jews. In accordance with Rashi's teachings, Petrines observe the Sabbath, but their Noahites observe the first day of the week instead of the seventh, Firstfruits instead of the Passover, the Ascension into Heaven instead of Lag B'Omer, taking up the yoke instead of Rosh hashana, Jesse's Circumcision instead of Yom Kippur, Noel instead of Chanukah, and Haj instead of Purim. Except for their khararim (igors), their Noahites are indifferent with regard to circumcision and follow the dietary laws prescribed in the Quran. Also they follow the teaching of non-violent confrontation and the meek acceptance of suffering.

===Sects===