'Mouth' in the Bible

The number of those lapping up [the water] with their hand to their mouth was three hundred men; all the rest of the troops kneeled to drink the water.

She said to him, "My father, {you made an oath} to Yahweh. Do to me according to what has gone out from your mouth, since Yahweh gave vengeance to you against your enemies, the {Ammonites}."

And they said to him, "Keep quiet! Put your hand on your mouth and come with us and be for us a father and a priest. Is it better being a priest for a house of one man or being a priest for a tribe and clan in Israel?"