'Signs' in the Bible

And it shall come to pass, if they will not believe also these two signs, neither hearken unto thy voice, that thou shalt take of the water of the river, and pour it upon the dry land: and the water which thou takest out of the river shall become blood upon the dry land.

And thou shalt take this rod in thine hand, wherewith thou shalt do signs.

And Moses told Aaron all the words of the LORD who had sent him, and all the signs which he had commanded him.

And Aaron spake all the words which the LORD had spoken unto Moses, and did the signs in the sight of the people.

And I will harden Pharaoh's heart, and multiply my signs and my wonders in the land of Egypt.

And the LORD said unto Moses, Go in unto Pharaoh: for I have hardened his heart, and the heart of his servants, that I might shew these my signs before him:

And that thou mayest tell in the ears of thy son, and of thy son's son, what things I have wrought in Egypt, and my signs which I have done among them; that ye may know how that I am the LORD.