The Crown Jewel of Christian Virtue – Hebrews 13:1

That the power and glory of Christian religion are exceedingly decayed and debased in the world.—Next unto faith in Christ Jesus, and the profession thereof, the life and beauty of Christian religion consist in the mutual love of them who are partakers of the same heavenly calling, which all pretend unto. And this is that whereon the Lord Christ hath laid the weight of the manifestation of his glory in the world, namely, the love that is among his disciples; which was foretold as the peculiar glory of his rule and kingdom. But there are only a few footsteps now left of it in the visible church; some marks only that there it hath been, and dwelt of old. It is, as unto its lustre and splendour, retired to heaven, abiding in its power and efficacious exercise only in some corners of the earth, and secret retirements. Envy, wrath, selfishness, love of the world, with coldness in all the concerns of religion, have possessed the place of it. And in vain shall men wrangle and contend about their differences in opinions, faith, and worship, pretending to design the advancement of religion by an imposition of their persuasions on others; unless this holy love be again introduced among all those who profess the name of Christ all the concerns of religion will more and more run into ruin. The very name of a brotherhood amongst Christians is a matter of scorn and reproach; and all the consequents of such a relation are despised. But it is marvellous how any men can persuade themselves that they are Christians, and yet be not only strangers, but enemies unto this love. – John Owen