They all fall into one category, they all present problems in human relationship. No problems are so difficult. They are not speculative, but practical. A man who may be wise as the world counts wisdom, and able to pierce with acute analysis to the depth of the abstrusest philosophic problem, may nevertheless find himself hopelessly baffled by some quite common fact of life, such as how to treat a wayward son, or a sinful woman. I am not likely to lose a night's rest because I am unable to define the Trinity but with what sore travail of heart do I toss through midnight hours when I have to settle some course of action towards the friend who has betrayed me, the brother who has brought me shame, the child who scoffs at my restraint, and hears the call of the far country in every swift pulsation of his passionate heart! And why cannot I settle my course of action? Because my mind is confused by something which I call justice, to which custom has given authority and consecration. Justice prescribes one course of action, affection another. The convention of the world insists that wrong-doing should be punished, which is manifestly right; but when it insists that I should be the punisher, I suspect something wrong. The more closely I study conventional justice the more I am conscious of something in myself that distrusts and revolts from it. The more I incline to the voice of affection the more I fear it, lest I should be guilty of weakness which would merit my own contempt. The struggle is one between convention and instinct, and I know not which side to take. But one thing I do know; it is that I have no certain clue to guide me, no clear determining principle that divides the darkness with a sword of light, no voice within myself that is authoritative. Now the wonderful thing in Jesus is that He is always sure of Himself. Nothing takes Him by surprise, nothing produces the least hesitation in His judgment. Therefore He must have had an unfailing clue to which He trusted in the maze of life. Behind all consistency of judgment there must exist consistency of principle. The principle that governed all the thoughts of Jesus was _that love was the only real justice_. He came not to condemn, not to destroy men's lives, but to save them. There was no problem of human relationship that could not be solved by love; there was no other principle needed for the regulation of society; and no other could produce that general peace and good-will which He called the Kingdom of God.