Bible Verses About Sign: A token of coming events

And in the morning, It will be foul weather to-day: for the heaven is red and lowering. Ye know how to discern the face of the heaven; but ye cannot discern the signs of the times.

An evil and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of Jonah. And he left them, and departed.

And as he sat on the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what shall be the sign of thy coming, and of the end of the world?