'Mouth' in the Bible

The Lord said to him, “Who has made man’s mouth? Or who makes the mute or the deaf, or the seeing or the blind? Is it not I, the Lord?

Now then go, and I, even I, will be with your mouth, and will teach you what you shall say.”

You must speak to him and put the words in his mouth; I, even I, will be with your mouth and with his mouth, and I will teach you what you are to do.

It shall serve as a sign to you on your hand (arm), and as a reminder on your forehead, so that the instruction (law) of the Lord may be in your mouth; for with a strong and powerful hand the Lord brought you out of Egypt.

Now concerning everything which I have said to you, be on your guard; do not mention the name of other gods [either in a blessing or in a curse]; do not let such speech be heard [coming] from your mouth.