The Differences Between Religions

Marshall asks are other religions completely deceived or is it possible that they have elements that are also inspired by God clearly Christianity looks at everything through Jesus but I ask because there are many similarities between religions almost as though God has revealed truth through them but why would God reveal some truth but not Christ so yeah there's a there's a tough one to get your teeth into a wonderful question. It strikes me speaking as an ancient historian strikes me as a very modern question because the concept of religion and there being different religions is an 18th century invention which surprised a lot of people at the time.