This guy is a repeat offender who deserves to be in prison probably for the rest of his life.
However, let us take a slightly different approach. What if a person molested a child, was arrested, went to prison was put on the sexual offenders registry and also went to therapy? This is not someone with a history of repeat offenses, but it is someone who is on the sexual offenders registry and thus is legally not allowed near children. Before the flaming starts again, I would like to point out this is a hypothetical situation and not this specific person or somewhat crazy congregation. This is someone who wants to make the most out of their life after prison, and they have been given an opportunity at a church where the church makes the decision to deny children from attending when he works there.
Would any of you really have a problems with this?
Even sexual offenders who molested children learn from their mistakes. In this specific scenario quoted in the OP the molester clearly has not learned from his mistakes. However, there are many who do. These people who have done their time need to reintegrate into society.