જોગીના જથા, કરે કુકર્મની કથા, તે જોગીપણું વૃથા.

jōgīnā jathā, karē kukarmanī kathā, tē jōgīpaṇuṁ vr̥thā.

Literally: An ascetic's matted hair, yet he tells stories of evil deeds, that asceticism is in vain.
What it means: Outward displays of piety and holiness are worthless if one's actions and thoughts remain wicked.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · 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.