King James Version
Therefore, son of man, prophesy and say unto Gog, Thus saith the Lord GOD; In that day when my people of Israel dwelleth safely, shalt thou not know it?English Standard Version
"Therefore, son of man, prophesy, and say to Gog, Thus says the Lord GOD: On that day when my people Israel are dwelling securely, will you not know it?Catholic Public Domain Version
Because of this, son of man, prophesy, and you shall say to Gog: Thus says the Lord God: How is it that you do not know of that day, when my people, Israel, will be living in confidence