Never say, “I know him,he will not listen to me”.
You may be proved wrong when you take a step to communicate with him on matters of concern.
Do not pre-empt your leaders!
The biblical principle of handling disappointment is:
_ call the person, one on one this help you treat each other with hounor and there will be effective management of information.
_ call a witness only if the first attempt yields no fruit and your disappointment is still sustained.
_ call the eldership or core team leader to discuss the matter and if it not still resolved, you may now exit.
If you follow this principle, you would have been a man of peace, with right standing before God and man.