פירוש על יהושע 7:24

His sons etc., and all of Yisroel.²⁹Why was it necessary to bring all of Yisroel? Rashi therefore explains—to witness his downfall. To witness his downfall, and to be forewarned against doing as he did.

His ox(en) and his mule(s) to destroy them, as it was said, ‘And he who is convicted by [his guilt in taking of] the sacred things, shall be burned with fire, he and all that he possesses.’³⁰See Verse 15 above, and Rashi’s commentary there.