Then certain experts in the law of Moses and some Pharisees answered Jesus, saying, "Teacher, we would like to see you perform a [supernatural] sign."

But He said to them, "It is [only] an evil and unfaithful [i.e., to God] generation of people that looks for a [supernatural] sign. And there will not be any sign given to it except the [supernatural] sign [demonstrated in the life] of Jonah, the prophet.

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

"It is an evil and spiritually unfaithful generation of people [that keeps on] looking for a [supernatural] sign; but there will be no [such] sign given to it except the sign of Jonah [i.e., being in the huge fish for three days]." Then He left them and went away.

And as He was sitting on the Mount of Olives, His disciples came to Him privately, saying, "Tell us, when will these things [you just spoke of] happen? And what will be the sign that indicates your presence and the end of the [present] age?"

Then the sign [i.e., signifying the coming] of the Son of man will appear in the sky, and all the nations of the earth will be stricken with grief as they see the Son of man coming in the clouds of the sky [See Acts 1:9-11] with power and great splendor.