“A wicked and adulterous generation seeketh after a signe, and there shall no signe be giuen vnto it, but the signe of the Prophet Ionas. And hee left them, and departed.”
1611 King James Version (KJV)
16:4 A wicked and adulterous generation - Ye would seek no farther sign, did not your wickedness, your love of the world, which is spiritual adultery, blind your understanding.
Mt 16:4 The sign of the prophet Jonas. See PNT "Mt 12:40".