It needs to be buried in the truth and be refuted. Somewhat blasphemous his mockery of Jesus paying for our sins by saying, "thank you Lord for taking that one again for me" Indeed, we should be grateful. Sin confession for forgiveness on the other hand doesn't even begin to acknowledge the Son of God, His work and ministry. It doesn't recognize Him as mediator and High Priest. It is like seeking another sacrifice, going backwards, and as scripture says, "trampling underfoot the Son of God."
When you sin, you repent, right?