Ezekiel 39:12 in the King James Version
And seven months shall the house of Israel be burying of them, that they may cleanse the land.
Context
11 “‘“It will happen in that day, that I will give to Gog a place for burial in Israel, the valley of those who pass through on the east of the sea; and it will stop those who pass through. They will bury Gog and all his multitude there, and they will call it ‘The valley of Hamon Gog’.
12 “‘“The house of Israel will be burying them for seven months, that they may cleanse the land.
13 Yes, all the people of the land will bury them; and they will become famous in the day that I will be glorified,” says the Lord GOD.