But he thinks fit to press the theme in a more set and deliberate way. For it is no light thing to awaken in men's hearts a right impression of what it is to be a Christian; or if it has been awakened, to nurse it to due strength. These Christians possessed some insight into the world of truth which held the mind of Paul; they had some experience of evangelical impression: in these things they had a happy fellowship with one another and with their great teacher. But all this must be affirmed and embodied in the conflict and ministry of Christian life. It must prove strong enough for that. Deeds are the true confession of our faith; they are the verification of our religious experience. And in this practical form we must overcome, not the temptations of other people or other ages, but our own. There is no more dangerous working of unbelief than that in which it never questions the doctrinal theory, but renders our Christianity cold and slack, and leads us to indulge a preference for a religion that goes easy. Could we but see as we are seen, we should find this to be a matter of endless lamentation. Temptations to rivalry and discord were working at Philippi. We are not obliged to think that they had gone very far; but one could see a risk that they might go further. The Apostle has it in his heart to expel this evil, by promoting the principles and dispositions that are opposed to it. And in this work the Philippians themselves must embark with all their might. It has been remarked already that causes are easily found to account for rivalries and misunderstandings springing up in those primitive Christian congregations. The truth is, however, that in all ages and conditions of the Church these dangers are nigh at hand. Self-seeking and self-exaltation are forms in which sin works most easily, and out of these come rivalry and discord by the very nature of the case. Eager grasping at our own objects leads to disregard of the rights and interests of others; and thence come wars. Danger in this direction was visible to the Apostle.