Luke 11:16

And others, trying him, sought of him a sign from heaven.

A sign from heaven ... This was repeatedly demanded by the Pharisees, although they are not named here: and what they probably meant was some spectacular wonder, without moral value, which would cater to human curiosity. Jesus never allowed himself to be maneuvered by such evil requests. Not only were the Pharisees incapable of judging such signs, if they had been given; but they were already the sworn enemies of the Lord, intent on killing him; and they would most surely have rejected anything that even the Son of God might have done. Furthermore, their conceit that some sign in the sky was necessarily from God was erroneous. Satan caused fire from heaven to fall on the animals that belonged to Job. Jesus would indeed give them a sign; but it would be of his choosing, not theirs. As Harrison said, "The utter unreasonableness of his enemies is demonstrated by their demand for a sign when they had just witnessed one."[23]