Mithali 30 : 20 Proverbs chapter 30 verse 20

Hivyo ndivyo mwendo wa mwanamke mzinifu; Hula, akapangusa kinywa chake, Akasema, Sikufanya uovu.
soma Mlango wa 30

So is the way of an adulterous woman: She eats and wipes her mouth, And says, 'I have done nothing wrong.'