Ezekiel 6:10

And they shall know that I am the LORD, and that I have not said in vain that I would do this evil unto them.
— Ezekiel 6:10, King James Version

In other translations

World English Bible (WEB)

They shall know that I am Yahweh: I have not said in vain that I would do this evil to them.

American Standard Version (ASV)

And they shall know that I am Jehovah: I have not said in vain that I would do this evil unto them.

Young's Literal Translation (YLT)

And they have known that I <FI>am<Fi> Jehovah, Not for nought have I spoken to do to them this evil.