nouns
an unquestionable truth
"his word was gospel"
folk music consisting of a genre of a cappella music originating with Black slaves in the United States and featuring call and response; influential on the development of other genres of popular music (especially soul)
the written body of teachings of a religious group that are generally accepted by that group
a doctrine that is believed to be of great importance
"Newton's writings were gospel for those who followed"
is a type of (narrower)
a belief (or system of beliefs) accepted as authoritative by some group or school