"It must be clear now that if you want to abuse children, there is no more effective way of terrifying and silencing your victims than to claim to have God on your side," he told the inquiry.
David Greenwood, who is also representing victims, said: "We will hear of bishops granting 'Permission to Officiate' certificates to convicted paedophiles and to those facing criminal allegations."
He added that there was a "strong suspicion of an organised conspiracy between clergy and bishops in the Diocese of Chichester to enable children to be abused".
The Archbishop of Canterbury Justin Welby said in a statement read to the inquiry by his counsel Nigel Giffin QC: "The failures that we have seen are deeply shaming and I personally find them a cause of horror and sadness.
"That children have been abused within the communities of the church is indeed shameful."