Others to test him asked him for a sign from heaven.

As the crowds pressed a round him, he went on to say, "This is a wicked age! It demands a sign, and no sign will be given it but the sign of Jonah.

For just as Jonah became a sign to the people of Nineveh, so the Son of Man will be a sign to this age.

Then they asked him, "Master, when will this happen, and what will be the sign that it is going to take place?"