26 No rock will be taken from you for a cornerstone, nor any stone for a foundation, for you will be desolate forever,” declares the LORD.

Read Jeremiah 51:26 Using Other Translations

And they shall not take of thee a stone for a corner, nor a stone for foundations; but thou shalt be desolate for ever, saith the LORD.
No stone shall be taken from you for a corner and no stone for a foundation, but you shall be a perpetual waste, declares the LORD.
You will be desolate forever. Even your stones will never again be used for building. You will be completely wiped out,” says the LORD .