Bruce Casmore
Bruce Casmore voted up Anonymous' answer

If you count by commonly used labels then it's Christianity with Islam a close second and rapidly catching up.

However, considering that all Muslims follow the same one scripture, the HQ, whereas there are 84-book Eastern Orthodox Bibles, 81-book Ethiopian Bibles, 73-book Catholic Bibles and 66-book Protestant Bibles, if we count the number of followers of … Read more

Bruce Casmore
Bruce Casmore voted up AnnNettie Paradise's answer

The religion that base their teachings on the Bible. The Bible itself says: “All Scripture is inspired of God and beneficial for teaching, for reproving, for setting things straight, for disciplining in righteousness, that the man [or woman] of God may be fully competent, completely equipped for every good work.” (2 Timothy 3:16, 17) Hence, … Read more