Matthew 16:1-4

AND the Pharisees and the Sadducees came to him, and, to make trial of him, desired him to shew them a sign from heaven.

Mark 8:11-12

Then the Pharisees came out, and began to question him, seeking of him a sign from heaven, tempting him.

Luke 11:29-30

Then the multitudes thronging around him, he began to say, This is a wicked generation: it seeketh a sign, and no sign shall be given it, but the sign of Jonah the prophet.

Treasury of Scripture Knowledge

Summary

And Isaiah said, This sign shalt thou have of the LORD, that the LORD will do the thing that he hath spoken: shall the shadow go forward ten degrees, or go back ten degrees?

Bible References

This sign

Matthew 16:1
AND the Pharisees and the Sadducees came to him, and, to make trial of him, desired him to shew them a sign from heaven.
Mark 8:11
Then the Pharisees came out, and began to question him, seeking of him a sign from heaven, tempting him.
Luke 11:29
Then the multitudes thronging around him, he began to say, This is a wicked generation: it seeketh a sign, and no sign shall be given it, but the sign of Jonah the prophet.