Charles Ellicott Commentary Jeremiah 51:26

"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 Jehovah." — Jeremiah 51:26 (ASV)

They shall not take of thee a stone for a corner. — The prophet uses general language applicable to any city destroyed by fire, without noting the special fact that Babylon was built of bricks.