Ezekiel 24:27

In that day your mouth will be opened to him who has escaped, and you shall speak, and be no more mute: so you will be a sign to them; and they shall know that I am the Lord."

In that day shall thy mouth be opened to him which is escaped, and thou shalt speak, and be no more dumb: and thou shalt be a sign unto them; and they shall know that I am the LORD.