הֲל֣וֹא ׀ עָכָ֣ן בֶּן־זֶ֗רַח מָ֤עַל מַ֙עַל֙ בַּחֵ֔רֶם וְעַֽל־כָּל־עֲדַ֥ת יִשְׂרָאֵ֖ל הָ֣יָה קָ֑צֶף וְהוּא֙ אִ֣ישׁ אֶחָ֔ד לֹ֥א גָוַ֖ע בַּעֲוֺנֽוֹ׃ (פ)
Did not Achan the son of Zerah commit a trespass concerning the devoted thing, and wrath fell upon all the congregation of Israel? and that man perished not alone in his iniquity.’
Read kabbalistic (mystical) interpretation of Joshua 22:20: and classical mystical sources.