It seems my previous post may have caused a wee bit of confusion among the ranks.
So, to clarify and end all the head scratching ….
In religious parlance, a core belief or fundamental principle is a tenet.
A tenant is someone who occupies land or property and pays rent.
Possibly the only time one could use the term religious tenant is if the local vicar or equivalent was being charged rent for his digs.
Phew! … Next!