Forgiving One Another

This morning I am speaking on 'Forgiving One Another.' As I read through the Gospel's the Lord put a great deal of emphasis the brethren loving one another, that being evidenced by their forgiving one another. Jesus, on the Sermon on the Mount, gave special attention to this problem in the form of judging others and in His example on prayer. Every N.T. book speaks of how we are to love and forgive one another. In fact, loving the brethren is a unique mark or trait that gives evidence that we are born from above, that we are even Christians. If we cannot forgive a brother his trespass, what makes us think we are Christians?