Now St. Paul wants us to restrain ourselves, not from fear of being punished, but because we like to do right. That is what he means when he says that we are to be led by the Spirit, instead of being under the law. It is better to be afraid of the law than to do wrong: but it is best of all to do right from the Spirit, and of our own free will.
Am I puzzling you? I hope not: but, lest I should be, 1 will give you one simple example which ought to make all clear as to the struggle between a man’s flesh and his spirit, and also as to doing right from the Spirit or from law.
Suppose you were a soldier going into battle. You see your comrades falling around you, disfigured and cut up; you hear their groans and cries; and you are dreadfully afraid: and no shame to you. It is the common human instinct of self-preservation. The bravest men have told me that they are afraid at first going into action, and that they cannot get over the feeling. But what part of you is afraid? Your flesh, which is afraid of pain, just as a beast is of the whip. Then your flesh perhaps says, Run away—or at least skulk and hide—take care of yourself. But next, if you were a coward, the law would come into your mind, and you would say, But I dare not run away; for, if I do, I shall be shot as a deserter, or broke, and drummed out of the army. So you may go on, even though you are a coward: but that is not courage. You have not conquered your own fear—you have not conquered yourself—but the law has conquered you.
But, if you are a brave man, as I trust you all are, a higher spirit than your own speaks to your spirit, and makes you say to yourself, I dare not run away; but, more, I cannot run away. I should like to—but I cannot do the things that I would. It is my duty to go on; it is right; it is a point of honour with me to my country, my regiment, my Queen, my God, and I must go on.
Then you are walking in the Spirit. You have conquered yourself, and so are a really brave man. You have obeyed the Spirit, and you have your reward by feeling inspirited, as we say; you can face death with spirit, and fight with spirit.
But the struggle between the Spirit and the flesh is not ended there. When you got excited, there would probably come over you the lust of fighting; you would get angry, get mad and lose your self-possession.
There is the flesh waking up again, and saying, Be cruel; kill every one you meet. And to that the Spirit answers, No; be reasonable and merciful. Do not fulfil the lusts of the flesh, and turn yourself into a raging wild beast. Your business is not to butcher human beings, but to win a battle.