Bible Verses About Sign: A token of coming events

and at morning, Foul weather to-day, for the heaven is red--gloomy; hypocrites, the face of the heavens indeed ye do know to discern, but the signs of the times ye are not able!

`A generation evil and adulterous doth seek a sign, and a sign shall not be given to it, except the sign of Jonah the prophet;' and having left them he went away.

And when he is sitting on the mount of the Olives, the disciples came near to him by himself, saying, `Tell us, when shall these be? and what is the sign of thy presence, and of the full end of the age?'