Matthew Poole and continuators on Proverbs 30:20

20 Such is the way of an adulterous woman ; she eateth , and wipeth her mouth , and saith, I have done no wickedness .

So secret and undiscernable.

Of her who though she be called and accounted a Maid, yet in truth is an adulteress, not a common strumpet, for of such the following words are not true, but one that secretly lives in the sin of Adultery or Fornication.

To wit, the bread of deceit in secret, by which is understood the act of filthiness, Prov. 9. 17. & 20. 17, which such persons do as greedily desire, and as delightfully feed upon, as hungry persons do upon bread. Thus chastly doth the Holy Ghost express the most filthy actions to teach us to avoid all immodest and obscene speeches as well as actions.

As a child doth when it hath eaten some forbidden food, and would not be discovered.

Denies the fact, and avoweth her innocency.