1. I was born in and raised as one of Jehovah's Witnesses during the time that the You Can Live Forever on Paradise Earth! book was the designated study guide leading to baptism. This was replaced by the Knowledge that Leads to Everlasting Life book. There was a big shift between the 1980s and the 1990s. The Watchtower Bible & Tract Society shifted from trying to both prove their religion was right and all other religions were wrong to just proving they were right. So, I grew up being given a great deal of knowledge why all other religions were wrong and why all other gods are fictitious.
2. I was also taught to believe that everything in the Bible is accurate and true. As I began my journey of leaving the Witness religion I began to learn things that made certain Bible events impossible. The Great Flood of Noah's Day is an example.
3. In recent years I have been to learn about the true origin of the Biblical Israel and Judaism. When I began learning that Israel was created by Babylonian captives who adopted Zoroastrian teaching to their Baal god El I knew that Judaism, the alleged precursor to Christianity was just like any other man-made religion. Add in the fact that Paul's letters to the Christian congregations of the first century predate the Gospels by nearly 40 years and that the Gospels were written decades after the alleged events in them took place you begin to see that Christianity is just another man-made religion as well.