'Sign' in the Bible

Then get yourself an iron plate and set it up as an iron wall between you and the city, and set your face toward it so that it is under siege, and besiege it. This is a sign to the house of Israel.

Load the baggage on your shoulder in their sight and carry it out in the dark. You shall cover your face so that you cannot see the land, for I have set you as a sign to the house of Israel.”

Say, ‘I am a sign to you. As I have done, so it will be done to them; they will go into exile, into captivity.’

I will set My face against that man and make him a sign and a proverb, and I will cut him off from among My people. So you will know that I am the Lord.

Also I gave them My sabbaths to be a sign between Me and them, that they might know that I am the Lord who sanctifies them.

Sanctify My sabbaths; and they shall be a sign between Me and you, that you may know that I am the Lord your God.’

Thus Ezekiel will be a sign to you; according to all that he has done you will do; when it comes, then you will know that I am the Lord God.’”

On that day your mouth will be opened to him who escaped, and you will speak and be mute no longer. Thus you will be a sign to them, and they will know that I am the Lord.’”