"No one who is born of God will continue to sin… .this is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not a child of God… " (1 John 3:9, 10)
SYDNEY SINNER is living a life that's clearly sinful in some area. Maybe he's living with his girlfriend or you learn that he's engaging in fornication or adultery. Maybe he's a gossip. The list of potential sins is too long to list, but you know them, and they're affecting your group. This is among the most difficult problems to deal with because it requires excellent discernment. What's your role in the situation?
Pray for wisdom. We're all sinners. If we're looking for a perfect group filled with sinless people we'll never find it this side of Heaven. So first you need to pray for wisdom and tolerance.
You need to evaluate prayerfully why you believe Sydney's sin is a problem to the group. You need to decide if he's chosen a life-style of sin, as opposed to the isolated sins that we all commit.
Sydney's sin will probably be one of "those" sins. You know, the sexual sins -- adultery, fornication, homosexuality. For some reason we seem to think that God puts them in an entirely separate category. Before we do anything at all, we need to be confident of His opinion about the sinful life-style we see.
Evaluate the action needed. The action you need to take will depend on why you believe Sydney's sin is a unique problem. Is he flaunting it? Is it affecting others in the group? Is it so public that it compromises the integrity of others in the group? You need to be clear on why you want to deal with Sydney's sin and not anyone else's. You can be sure that Sydney will question your motives.
Most sins can ...