The admonition to be at peace among ourselves in local gatherings of saints is a brief one (I Thess. 5:13), but it requires much spiritual exercise in the form of prayer, wisdom, self-judgment, and brotherly kindness (brotherly affection – philadelphia). “Be kindly affectioned one to another with brotherly love; in honour preferring one another” (Romans 12:10).
Posted below is an audio recording of remarks made to a group of Christian young people at a Bible conference in St Louis on the subject of maintaining sincere love and affection for each other, and on the very real need for peacemaking at home and in the assembly, beginning early in life. “Let no one despise thy youth, but be a model of the believers, in word, in conduct, in love, in faith, in purity” (I Timothy 4:12 Darby translation).