a guilty conscience needs no accuser
Definition:  if a person has done something wrong, that one will always have a bad feeling and even before they are being accused, they turn to confessing that they have nothing to do with that; the wrongdoer will say things which will reveal that they are guilty
Usage:  when I came back from work, my daughter met me at the gate. her first words were “mummy, I did not eat any sweets”, then I knew that she did eat them, because they say a guilty conscience needs no accuser

SEPEDI
Translation:  letswalo le molato ga le hloke molatofatši
Proverb: letswalo le molato le a ikahlola

XITSONGA
Translation:  loyi a nga na nandzu a nga lavi ku kombeteriwa hi tintiho
Proverb: mbyana leyi yiveke matandza yi tikomba hi ku yimisa tindleve

TSHIVENḒA
Translation:  luvalo lune lwa vha na mulandu a lu ṱoḓi mupomoki
Proverb: o ḽaho funguvhu u vhonala nga valuvalu