'Mouth' in the Bible

He humbled you and allowed you to be hungry and fed you with manna, [a substance] which you did not know, nor did your fathers know, so that He might make you understand [by personal experience] that man does not live by bread alone, but man lives by every word that proceeds out of the mouth of the Lord.

and what He did to Dathan and Abiram, the sons of Eliab, the son of Reuben, when the earth opened its mouth and swallowed them, their households, their tents, and every living thing that followed them, in the midst of all Israel.

I will raise up a prophet from among their countrymen like you, and I will put My words in his mouth, and he shall speak to them all that I command him.

You shall be careful to perform that [vow] which passes your lips, just as you have made a voluntary vow to the Lord your God, just as you have promised with your own words (mouth).

But the word is very near you, in your mouth and in your heart, so that you may obey it.

“Listen, O heavens, and I will speak;And let the earth hear the words of my mouth.