What do you think it means to “Let the person who is without sin cast the first stone” (read the phrase over more than once to understand the deeper meaning)? Chapter 27

In essence, this means that we are all of usimperfect and guilty of sin, and as such, have no right to cast the first stone of blame. Biblically, this refers to the woman who was about to be stones for adultery, and Jesus said, "He that is without sin among you, let him first cast a stone at her."