Don't count him as an enemy, but admonish him as a brother.
as a brother; as one that has been called a brother, and a member of the church, and who, though criminal, has no bitterness in him against the church, or against the name of Christ, and the doctrines of Christ; and therefore should not be treated in a virulent manner, but with a brotherly affection, meekness, compassion, and tenderness; and who indeed is to be reckoned as a brother, while the censure is passing, and the sentence of excommunication is executing on him; for till it is finished he stands in such a relation: though this also may have respect, as to the manner of excommunicating persons, so to the conduct of the church to such afterwards; who are not to neglect them, and much less to treat them as enemies, in a cruel and uncompassionate manner; but should inquire, and diligently observe, what effect the ordinance of excommunication has upon them, and renew their admonitions and friendly reproofs, if possible, to recover them.