Christian faith has appeared to many an easy thing; nay, not a few even reckon it among the social virtues, as it were; and this they do because they have not made proof of it experimentally, and have never tasted of what efficacy it is. A Christian man is the most free lord of all, and subject to none; a Christian man is the most dutiful servant of all, and subject to everyone. Although these statements appear contradictory, yet, when they are found to agree together, they will make excellently for my purpose. They are both the statements of Paul himself, who says, "Though I be free from all men, yet have I made myself servant unto all" and "Owe no man anything, but to love one another." Let us examine the subject on a deeper and less simple principle.