Matthew 16:1

1AndΚαὶhaving approachedπροσελθόντεςtheοἱPhariseesΦαρισαῖοιandκαὶSadduceesΣαδδουκαῖοιtestingπειράζοντεςaskedἐπηρώτησανHimαὐτὸνa signσημεῖονout ofἐκτοῦheavenοὐρανοῦto showἐπιδεῖξαιthemαὐτοῖς.

And having come, the Pharisees and Sadducees, testing [Him], asked Him to show them a sign out of heaven.