The History of Heresies and Their Refutation by St Alphonsus M. Liguori. Unedited Reprint of 1857 edition. Some references in Latin, the rest of the book is in
Simon Magus , the first heretic who disturbed the Church, was born in a part of Samaria called Githon or Gitthis. He was called Magus, or the Magician, because