▁alt ar ▁twice ▁a ▁year , ▁on ▁Pass over ▁and ▁Su kk ot , ▁and ▁they ▁white w ashed ▁the ▁vest ib ule ▁once ▁a ▁year , ▁on ▁Pass over . ▁ ▁Rab bi ▁( J ud ah ▁the ▁Patri arch ) ▁said ▁that ▁they ▁clean ed ▁them ▁with ▁a ▁cloth ▁every ▁Friday ▁because ▁of ▁blood ▁st ains . ▁ ▁They ▁did ▁not ▁apply ▁the ▁white w ash ▁with ▁an ▁iron ▁t row el , ▁out ▁of ▁the ▁concern ▁that ▁the ▁iron ▁t row el ▁would ▁touch ▁the ▁stones ▁and ▁render ▁them ▁un fit , ▁for ▁iron ▁was ▁created ▁to ▁short en ▁human ity ' s ▁days , ▁and ▁the ▁alt ar ▁was ▁created ▁to ▁extend ▁human ity ' s ▁days , ▁and ▁it ▁is ▁not ▁proper ▁that ▁that ▁which ▁short ens ▁human ity ' s ▁days ▁be ▁placed ▁on ▁that ▁which ▁extends ▁human ity ' s ▁days . ▁ ▁The ▁T ose ft a ▁reported ▁that ▁Rab ban ▁Jo ḥ an an ▁ben ▁Zak ka i ▁said ▁that ▁ ▁sing led ▁out ▁iron , ▁of ▁all ▁met als , ▁to ▁be ▁invalid ▁for ▁use ▁in ▁building ▁the ▁alt ar ▁because ▁one ▁can ▁make ▁a ▁sword ▁from ▁it . ▁ ▁The ▁sword ▁is ▁a ▁sign ▁of ▁pun ishment , ▁and ▁the ▁alt ar ▁is ▁a ▁sign ▁of ▁at on ement . ▁ ▁They ▁thus ▁kept ▁that ▁which ▁is ▁a ▁sign ▁of ▁pun ishment ▁away ▁from ▁that ▁which ▁is ▁a ▁sign ▁of ▁at on ement . ▁ ▁Because ▁stones , ▁which ▁do ▁not ▁hear