Isaiah 66:16 in the King James Version
For by fire and by his sword will the LORD plead with all flesh: and the slain of the LORD shall be many.
Context
15 For, behold, the LORD will come with fire, and his chariots will be like the whirlwind; to give his anger with fierceness, and his rebuke with flames of fire.
16 For the LORD will execute judgment by fire and by his sword on all flesh; and those slain by the LORD will be many.
17 “Those who sanctify themselves and purify themselves to go to the gardens, following one in the middle, eating pig’s meat, abominable things, and the mouse, they shall come to an end together,” says the LORD.