What is the worst sin a person can commit? [not that you have any say in the matter anyway]. God can forgive it, if the person who committed it truly repents of it!

God, thankyou for the cleansing Blood of Jesus that washes me whiter than snow. I hope and pray that despite the darkness of the times we live in that souls will still repent for the first time and taste the Graciousness of the Spirit of Jesus. Even so Lord, come quickly!