In Roman Catholicism, a dogma is a teaching that the Church says has been revealed by God and must therefore be believed by all Catholics. It is not optional. According to Rome, to knowingly and stubbornly reject a dogma is heresy. Rome regards this as a grave sin against the faith, one that can incur excommunication and, if a person dies unrepentant, eternal separation from God.

This 5-minute video is a brief biblical critique of the four primary Marian dogmas: Mary as the Mother of God, her Perpetual Virginity, the Immaculate Conception, and her Bodily Assumption.