John Gill Commentary Ezra 6:11

"Also I have made a decree, that whosoever shall alter this word, let a beam be pulled out from his house, and let him be lifted up and fastened thereon; and let his house be made a dunghill for this:" — Ezra 6:11 (ASV)

Also I have made a decree, that whoever alters this
word
Act contrary to this command, will not obey it, but as much as in him lies changes and revokes it:

let timber be pulled down from their house, and being set up, let him be
hanged on it ;
that is, let a beam be taken from it, and a gallows or gibbet made of it, and hang him on it:

and let their house be made a dunghill for this ;
be pulled down, and never rebuilt more, (See Gill on Daniel 2:2), (See Gill on Daniel 2:9).