Jezekiel 39:8

8 Behold it is come, and thou shalt know that it shall be, saith the Lord God; this is the day concerning which I have spoken.

Jezekiel 39:8 In-Context

6 And I will send a fire upon Gog, and the islands shall be securely inhabited: and they shall know that I am the Lord.
7 And my holy name shall be known in the midst of my people Israel; and my holy name shall no more be profaned: and the nations shall know that I am the Lord, the Holy in Israel.
8 Behold it is come, and thou shalt know that it shall be, saith the Lord God; this is the day concerning which I have spoken.
9 And they that inhabit the cities of Israel shall come forth, and make a fire with the arms, the shields and the spears, and bows and arrows, and hand-staves, and lances, and they shall keep fire burning with them for seven years:
10 and they shall not take any wood out of the field, neither shall they cut any out of the forests, but they shall burn the weapons with fire: and they shall plunder those that plundered them, and spoil those that spoiled them, saith the Lord.

The Brenton translation of the Septuagint is in the public domain.