If any man thinketh himself to be religious, while he bridleth not his tongue but deceiveth his heart, this man’s religion is vain.

If a man seems to have religion and has no control over his tongue but lets himself be tricked by what is false, this man's religion is of no value.

Εαν τις μεταξυ σας νομιζη οτι ειναι θρησκος, και δεν χαλινονη την γλωσσαν αυτου αλλ' απατα την καρδιαν αυτου, τουτου η θρησκεια ειναι ματαια.

If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man’s religion is vain.