'Future' in the Bible

After this I looked, and behold, a door standing open in heaven! And the first voice which I had heard, like the sound of a [war] trumpet speaking with me, said, “Come up here, and I will show you what must take place after these things.”

And a great sign [warning of an ominous and frightening future event] appeared in heaven: a woman clothed with the sun, with the moon beneath her feet, and on her head a crown of twelve stars.