Question

What is the difference between orthodox Christianity and Christianity?

Answer 1

Orthodox Christianity believes most of what catholics believe but reject the papacy.

The papacy is why you see the catholic sect of Christianity have a pope. Orthodox believe that it is just the bishops, no pope included.

Answer 2

The Orthodox Church differs substantially from the other Churches in the way of life and worship, and in certain aspects of theology. The Holy Spirit is seen as present in and as the guide to the Church working through the whole body of the Church, as well as through priests and bishops.