Many parts of the Bible are highly compatible with communism (rich people can’t get into heaven etc). There are many based people/groups who are religious like Ansar Allah and the Sandinistas. On the other hand, materialism does contradict religion. Some, like Breht from Rev Left have argued that Buddhist practices can help revolutionaries, and obviously we should support all progressive forces. However we should never fit miracles or god being on our side into our calculus regardless of what we believe. A materialist analysis is not compatible with religion, but cognitive dissonance exists.