Berean Standard Bible (BSB)
And they will know that I am the LORD; I did not declare in vain that I would bring this calamity upon them.
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.
Strong's King James
And they shall know{H3045}{(H8804)} that I am the LORD{H3068}, and that I have not said{H1696}{(H8765)} in vain{H2600} that I would do{H6213}{(H8800)} this evil{H7451} unto them.
The F.O.G *
The F.O.G Message *
Young's Literal Translation
And they have known that I am Jehovah, Not for nought have I spoken to do to them this evil.