followers of the native american church have differing ceremonies, celebrations, and ways of practicing their religion. for example, among the teton, the cross fire group uses the bible for sermons, which are rejected by the half moon followers, though they each teach a similar christian morality. ceremonies commonly last all night, beginning saturday evening and ending early sunday morning. scripture reading, prayer, singing, and drumming are included. in general, the native american church believes in one supreme god, the great spirit.