'Sign' in the Bible

The Jews therefore answered him, "What sign do you show us, seeing that you do these things?"

This is again the second sign that Jesus did, having come out of Judea into Galilee.

When therefore the people saw the sign which Jesus did, they said, "This is truly the prophet who comes into the world."

They said therefore to him, "What then do you do for a sign, that we may see, and believe you? What work do you do?

Many came to him. They said, "John indeed did no sign, but everything that John said about this man is true."

For this cause also the multitude went and met him, because they heard that he had done this sign.