John Gill Commentary Joshua 22:20

"Did not Achan the son of Zerah commit a trespass in the devoted thing, and wrath fell upon all the congregation of Israel? and that man perished not alone in his iniquity." — Joshua 22:20 (ASV)

Did not Achan the son of Zerah
One that descended from Zerah the son of Judah, (Joshua 7:18) ;

commit a trespass in the accursed thing ;
in taking what was devoted to sacred uses:

and wrath fell on all the congregation of Israel ?
and which was what was feared now; and this instance is brought to show that such fears were not groundless:

and that man perished not alone in his iniquity :
which seems to confirm the notion of those who think that his children suffered with him; though it may be observed, that it was through his sin that thirty six men were slain by the men of Ai, (Joshua 7:5) .