'Sign of the Prophet Jonah' in the Bible

But He replied and said to them, “An evil and adulterous generation [that is morally unfaithful to God] craves and demands a [miraculous] sign; but no sign will be given to it except the sign of the prophet Jonah;

An evil and [morally] unfaithful generation craves a [miraculous] sign; but no sign will be given to it, except the sign of [the prophet] Jonah.” Then He left them and went away.

And the multitudes being assembled, He began to say, This is a wicked generation: it seeks after a sign, and no sign shall be given to it except the sign of the prophet Jonah.