Matthew 16:1-4

The Pharisees and Sadducees came [and attempted] to test Jesus [by] asking Him to perform a [supernatural] sign from heaven.

Mark 8:11-12

The Pharisees and Sadducees [i.e., these were strict sects of the Jewish religion], came out and began disputing with Jesus, asking for a [supernatural] sign from Him, [in an attempt] to test Him.

Luke 11:29-30

And when the crowds thronged around Jesus, He began saying, "This generation of people is evil, [for] it is looking for a [supernatural] sign. But no [such] sign will be given to it except the sign [demonstrated in the life] of Jonah.

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
The Pharisees and Sadducees came [and attempted] to test Jesus [by] asking Him to perform a [supernatural] sign from heaven.
Mark 8:11
The Pharisees and Sadducees [i.e., these were strict sects of the Jewish religion], came out and began disputing with Jesus, asking for a [supernatural] sign from Him, [in an attempt] to test Him.
Luke 11:29
And when the crowds thronged around Jesus, He began saying, "This generation of people is evil, [for] it is looking for a [supernatural] sign. But no [such] sign will be given to it except the sign [demonstrated in the life] of Jonah.