Heresy of the Week: Priscillianism

Back to Gnosticism for a bit with this week's heresy...

Priscillianism is a Manichaeism and Gnosticism heresy of the 4th century. Like most Gnostic sects, they teach a dualistic heresy with two kingdoms, light and dark. Human souls were originally destined to conquer the Kingdom of Darkness, but fell and were imprisoned in material bodies. Both light and dark is therefore in humans. Salvation comes in liberation from the dominion of matter. They taught that a savior came in a heavenly body, appeared to be like a man and appeared to die, which released the souls of men from the influence of earthly matter. They practiced Asceticism. Like the Islamic doctrine of Taqiyya, Priscillianists were allowed to lie if the ends were holy.

Heresy of the Week: Mohammedanism

I am largely including this in my list because it is listed in the Book of Concord as a heresy.  What say you as to its status as a heresy?

Mohammedanism: Mohammedanism is listed by Lutherans as a heresy in the 1530 Augsburg Confession. While Islam is not usually considered a Christian heresy, there is some significant evidence suggesting a link to Arianism, and that Mohammed likely based what he used in the Qu’ran from the Bible out of an Arian Bible. Clearly, the Islamic view of Jesus is in line with Arianism by denying His deity. Since they deny the Trinity, this is also an antitrinitarian heresy.