'Utterance' in the Bible

" 'When a person sins in that he hears [the] utterance of a curse and he [is] a witness or he sees or he knows, if he does not make [it] known, then he shall bear his guilt.

The utterance of your lips {you must perform diligently} [just] as you have vowed freely to Yahweh your God whatever [it was] that you promised with your mouth.