'Sign' in the Bible

And take thou unto thee an iron plate, and put it for a wall of iron between thee and the city; and set thy face against it, and it shall be besieged, and thou shalt lay siege against it: this shall be a sign to the house of Israel.

In their sight shalt thou bear it upon thy shoulder, and carry it forth in the dark; thou shalt cover thy face, and thou shalt not see the ground: for I have appointed thee for a sign unto the house of Israel.

Say, I am your sign: as I have done, so shall it be done unto them: they shall go into exile, into captivity.

and I will set my face against that man, and will make him desolate, so that he shall be for a sign and for proverbs, and I will cut him off from the midst of my people: and ye shall know that I am Jehovah.

And I also gave them my sabbaths, to be a sign between me and them, that they might know that I am Jehovah that hallow them.

and hallow my sabbaths; and they shall be a sign between me and you, that ye may know that I am Jehovah your God.

Thus Ezekiel shall be unto you a sign; according to all that he hath done shall ye do: when it cometh, then ye shall know that I am the Lord Jehovah.

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

And the passers-by shall pass through the land, and when any seeth a man's bone, he shall set up a sign by it, till the buriers have buried it in the Valley of Hamon-Gog.