"and there fall of them many": If one of them falls, it is (to Me) as if all have fallen; the one detracts from the many. One of them who falls is reckoned against the entire act of creation, viz. (Zechariah 9:2) "for to the L–rd (will be) the eye of (one) man and (it will be reckoned as) all the tribes of Israel."
Meaning That the Loss Diminishes Everything God Made
Mekhilta Tractate Bachodesh 4:14