Quran 33:62 — The Parties (Al-Ahzab)

This is GOD's eternal system, and you will find that GOD's system is unchangeable.

[33:61] They have incurred condemnation wherever they go; (unless they stop attacking you,) they may be taken and killed.

[33:63] The people ask you about the Hour (end of the world). Say, "The knowledge thereof is only with GOD. For all that you know, the Hour may be close."