We love Him so greatly that we instinctively love His true friends. Those who walk in the light have fellowship for each other. They find each other out, and their hearts naturally run together. Rays of light, coming from the same source, easily mingle. Living streams, however widely separated, unite at last in the ocean.
Holy persons feel that union of spirit, which is properly called, the communion of saints.
Holiness implies love for our enemies. It is impossible to have true holiness without having enemies. Christ had them. He told His disciples they should have them. If you belong to Christ, His enemies will be your enemies.