The original Greek text is:
- Ὑμεῖς ἐστε τὸ ἅλας τῆς γῆς· ἐὰν δὲ τὸ ἅλας μωρανθῇ, ἐν τίνι ἁλισθήσεται; εἰς οὐδὲν ἰσχύει ἔτι εἰ μὴ βληθὲν ἔξω καταπατεῖσθαι ὑπὸ τῶν ἀνθρώπων.
The translation of the King James Bible reads:
- Ye are the salt of the earth: but if the salt have lost his savour, wherewith shall it be salted? it is thenceforth good for nothing, but to be cast out, and to be trodden under foot of men.
The translation of the Revised Standard Version reads:
- You are the salt of the earth; but if salt has lost its taste, how shall its saltness be restored? It is no longer good for anything except to be thrown out and trodden under foot by men.
Many Christians and Christian theologians interpret this verse to mean that Christians who do not act or speak like they are Christians are probably not Christians and may not be saved. Just like Salt that does not look or taste like salt is probably not salt. See salt not melting snow in Grit bin