There are many false prophets and not only in temples and churches.

Some are institutions, some are companies, some are constitutions, some are celebrities some are technologies some are songs some are ideologies.

Basically whatever we use to access the unknown. That is our prophet.

So if they tell lies then you have followed a false prophet or at the very least one who has given a false prophesy.

For there is always a chance for repentance.

But be vigilant for even the elect shall be deceived.