Now if we were to translate with perfect literality, we should read, not by the power of God, but in the power of God. And whilst it is quite probable that what Peter meant was 'by,' I think it adds great force and beauty to the passage, and is entirely accordant with the military metaphor, which I have already pointed out, if we keep the simple local sense of the word, and read, 'guarded in the power of God.' And that suggests a whole stream of Scriptural representations, both in the Old and in the New Testament. Let me recall one or two. 'The name of the Lord is a strong tower; the righteous runneth into it and is safe.' 'He that dwelleth in the secret place of the Most High shall abide under the shadow of the Almighty.' 'Israel shall dwell safely,' says one of the old prophets, 'in unwalled villages, for I will be a wall of fire round about her.' The psalmist said, 'The Angel of the Lord encampeth round about them that fear Him.' And all these representations concur in this one thought, that we are safe, enclosed in God, and that He, by His power, compasses us about. And so no foe can get at us who cannot break down or climb over the encircling wall of defence. An army in an enemy's country will march in hollow square, and put its most precious treasures, or its weaker members, its sick, its women, its children, its footsore, into the middle there, and with a line of lances on either side, and stalwart arms to wield them, the feeblest need fear no foe. We 'are kept in the power of God unto salvation.'
But do not forget how, far beyond the psalmist and prophet, and in something far more sublime and wonderful than a poetic figure, the New Testament catches up the same phrase, and gives us, as the condition of vitality, as the condition of fertility, as the condition of tranquillity, as the condition of security, the same thing—'in Christ.' Remember His very last words prior to His great intercessory prayer, in which He spoke about keeping those that were given Him in His name. And just before that He said to them, 'In the world ye shall have tribulation, but in Me ye shall have peace.' Kept, guarded as behind the battlements of some great fort, which has in its centre a quiet, armoured chamber into which no noise of battle, nor shout of foeman, can ever come. 'In Christ,' though the world is all in arms without, 'ye shall have peace.' 'Guarded in the power of God unto salvation.'
III. Lastly, what we are kept through.
'Through faith.' Now there we come across another of the words which we know so well that we do not understand them. You all think that it is the right thing for me to preach about 'faith.' I daresay some of you have never tried to apprehend what it means. And I daresay there are a great many of you to whom the utterance of the word suggests that I am plunging into the bathos and commonplaces of the pulpit. Perhaps, if you would try to understand it, you would find it was a bigger thing than you fancied. What is faith? I will give you another expression that has not so many theological accretions sticking to it, and which means precisely the same thing—trust. And we all know that we do not trust with our heads, but with our hearts and wills. You may believe undoubtedly, and have no faith at all, for it is the heart and the will that go forth, and clutch at the thing trusted; or, as I should rather say, at the person trusted; for, at bottom, what we trust is always a person, and even when we 'trust to nature,' it is because, more or less clearly, we feel that somehow or other at the back of nature there is a Will and an Intelligence that are working and trustworthy. However, that is a subject that I do not need to touch upon here. Faith is trust, trust in a Person, trust that, like the fabled goddess rising, radiant and aspiring to the heavens, out of the roll of the tempestuous ocean, springs from the depths of absolute self-distrust and diffidence. There is a spurious kind of faith which has no good in it, just because it did not begin with going down into the depths of one's own heart, and finding out how rotten and hopeless everything was there. My friend, no man has a vigorous Christian faith who has not been very near utter despair. 'Out of the depths have I cried unto Thee.' The zenith, which is the highest point in the sky above us, is always just as far aloft as the nadir, which is the lowest point in the sky at the Antipodes, is beneath us. Your faith is measured by your self-despair.
Further, why is it that I must have faith in order to get God's power at work in me? Many people seem to think that faith is appointed by God as the condition of salvation out of mere arbitrary selection and caprice. Not at all. If God could save you without your faith, He would do it. He does not, because He cannot. Why must I have faith in order that God's power may keep me? Why must you open your window in order to let the fresh air in? Why must you pull up the blind in order to let the light in? Why must you take your medicine or your food if you want to be cured or nourished? Why must you pull the trigger if your revolver is to go off? Unless I trust God, distrusting myself, and the spark of faith is struck out of the rock of my heart by the sharp steel in the midst of the darkness of despair, God cannot pour out upon me His power. There is nothing arbitrary about it. It is inseparable from the very nature of the case. If you do not want Him, you cannot have Him. If you do not know that you need Him, you cannot have Him. If you do not trust that He will come to you and help you, you will not have Him.
So then, brother, your faith, my faith, anybody's faith is nothing of itself. It is only the valve that opens and lets the steam rush in. It is only the tap you turn to let Thirlmere come into your basins. It is not you that saves yourself. It is not your faith that keeps you, any more than it is the outstretched hand with which a man, ready to stumble, grasps the hand of a stalwart, steadfast man on the pavement by his side that keeps him up. It is the other man's hand that holds you up, but it is your hand that lays hold of him. It is God that saves, it is God that guards, it is God that is able to keep us from falling, and to give us an inheritance among all them that are sanctified. He will do it if we turn to Him, and ask and expect Him to do it. If you will comply with the conditions and not else, He will fulfil His promise and accomplish His purpose. But my unbelief can thwart Omnipotence, and hinder Christ's all-loving purpose, just as on earth we read that 'He could there do no mighty works because of their unbelief.' I am sure that there are people here who all their lives long have been thus hampering Omnipotence and neutralising the love of Christ, and making His sacrifice impotent and His wish to save them vain. Stretch out your hands as this very Peter once did, crying, 'Lord, save, or I perish'; and He will answer, not by word only, but by act: 'According to thy faith be it unto thee.' Salvation, here and hereafter, is God's work alone. It cannot be exercised towards a man who has not faith. It will certainly be exercised towards any man who has.
Help us, O Lord, we beseech Thee, to live the lives which we live in the flesh by the faith of the Son of God. And may we know what it is to be in him, strengthened within the might of His spirit.