જેના મ્હોમાં માંસ તેના શો વિશ્વાસ?

jēnā mhōmāṁ māṁsa tēnā śō viśvāsa?

Literally: Who has meat in their mouth, what trust is there in them?
What it means: Said of a person who cannot be trusted because they are already compromised by greed or are naturally predatory.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.