Simplify the following text for a Grade 8 native English-speaking person.
Original: In religion , the charge of schism is distinguished from that of heresy , since the offence of schism concerns not differences of belief or doctrine but promotion of , or the state of , division , but schisms frequently involve mutual accusations of heresy . In Roman Catholic teaching , every heresy is a schism .
Simplified: Though it is very important to note the difference between heresy and schism .