It recognises the Bible,though not the King James version, but it is based upon the fact that we all are children of god. Rastafari is based upon the bible, although the bible is seen as only have the story told. So you could say it's a brethren of catolic and protestant church etc.
The big difference is that Rastafari recognise Haile Selassie as the son of god, fortold to come in the bible, Jesus would come again as King of Kings, Lord of Lords and Conquering Lion Of The Tribe Of Judah. Therefore Rastafari say we should all recognise Rastafari and live now instead of dwelling on about the past or trying to reach heaven (zion) or ****, live now.
Rastafari may be Afrocentric, it doesn't matter whether black or white to recognise Jah Rastafari as Igziabeher. It very well includes the history and truth of all races, from Noah whom had 3 sons, Ham, who led the African People, Japhet who start the White Race in Europe and Shem, father of Chinaman.
Rastafari is by no means a religion about herb, yet this is what people make of it.