im not sure but i believe jesus is the name the romans used for him. there are j's in the bible because it has been translated, there are no j's in the original because its written in ancient hebrew. the bible has been rewritten, edited and censored many times over 2000 years. you can google "the apocryphal texts" and see a few of the books excluded over history including a few the vatican would rather not talk about. guess it doesnt matter what name you use if you really believe in it tho.