'Mouth' in the Bible

This is to be the law of the Nazirite when he commits his offering to the LORD on account of his consecration, over and beyond what he owns alone plus whatever he can provide, based on the vow from his own mouth that he vows to fulfill on account of the law of his consecration."

But if the LORD creates something new, so that the ground opens its mouth and swallows them and everything that belongs to them and they all descend directly to Sheol while still alive, then you'll know that these men have spurned the LORD."

The earth opened its mouth and swallowed them, all their households, everyone who was affiliated with Korah, and all of their property.

Balaam answered Balak, "Well, I'm here now. I've come to you, but I can't just say anything, can I? I'll speak only what God puts in my mouth to say."

But in response, Balaam asked, "Shouldn't I be careful to communicate only what the LORD puts in my mouth?"

The ground had opened its mouth and swallowed them up, along with Korah. Also, that group died when the fire devoured 250 men as a warning sign,

"When a man makes a vow to the LORD, or swears an oath an obligation that is binding to himself he is not to break his word. Instead, he is to fulfill whatever promise came out of his mouth.'"

"If she has a husband and she makes a vow that is binding on herself, or if she makes a hasty vow with her mouth that she pledges herself to fulfill,