Isaiah 66:16 KJV
For by fire and by his sword will the LORD plead with all flesh: and the slain of the LORD shall be many.
Isaiah 66:14–18 KJV Chapter Context
14
And when ye see this, your heart shall rejoice, and your bones shall flourish like an herb: and the hand of the LORD shall be known toward his servants, and his indignation toward his enemies.
15
For, behold, the LORD will come with fire, and with his chariots like a whirlwind, to render his anger with fury, and his rebuke with flames of fire.
16
For by fire and by his sword will the LORD plead with all flesh: and the slain of the LORD shall be many.
17
They that sanctify themselves, and purify themselves in the gardens behind one tree in the midst, eating swine’s flesh, and the abomination, and the mouse, shall be consumed together, saith the LORD.
18
For I know their works and their thoughts: it shall come, that I will gather all nations and tongues; and they shall come, and see my glory.