'Mouth' in the Bible

whose mouth is full of cursing and bitterness.

Now we know that whatever the law says, it speaks to those under the law, in order that every mouth may be closed and the whole world may become accountable to God.

But what does it say? "The word is near to you, in your mouth and in your heart" (that is, the word of faith that we proclaim),

that if you confess with your mouth "Jesus [is] Lord" and believe in your heart that God raised him from the dead, you will be saved.

For with the heart one believes, resulting in righteousness, and with the mouth one confesses, resulting in salvation.

so that with one mind you may glorify with one mouth the God and Father of our Lord Jesus Christ.