'End of the World' in the Bible

The enemy that sowed them is the devil; the harvest is the end of the world; and the reapers are the angels.

So shall it be at the end of the world: the angels shall come forth, and sever the wicked from among the just,

And as he sat upon 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?

Teaching them to observe all things whatsoever I have commanded you: and, lo, I am with you alway, even unto the end of the world. Amen.