Thus, then, in its infancy, faith may and does coexist with much unfaith and doubt. The same state of mind, looked at from its two opposite ends, as it were, may be designated faith or unbelief; just as a piece of shot silk, according to the angle at which you hold it, may show you only the bright colours of its warp or the dark ones of its weft. When you are travelling in a railway train with the sun streaming in at the windows, if you look out on the one hand you will see the illumined face of every tree and blade of grass and house; and if you look out on the other, you will see their shadowed side. And so the same landscape may seem to be all lit up by the sunshine of belief, or to be darkened by the gloom of distrust. If we consider how great and how perfect ought to be our confidence, to bear any due proportion to the firmness of that upon which it is built, we shall not be slow to believe that through life there will always be the presence in us, more or less, of these two elements. There will be all degrees of progress between the two extremes of infantile and mature faith. There follows from that thought this practical lesson, that the discovery of much unbelief should never make a man doubt the reality or genuineness of his little faith. We are all apt to write needlessly bitter things against ourselves when we get a glimpse of the incompleteness of our Christian life and character. But there is no reason why a man should fancy that he is a hypocrite because he finds out that he is not a perfect believer. But, on the other hand, let us remember that the main thing is not the maturity, but the progressive character, of faith. It was most natural that this man in our text, at the very first moment when he began to put his confidence in Jesus Christ as able to heal his child, should be aware of much tremulousness mingling with it. But is it not most unnatural that there should be the same relative proportion of faith and unbelief in the heart and experience of men who have long professed to be Christians? You do not expect the infant to have adult limbs, but you do expect it to grow. True, faith at its beginning may be like a grain of mustard seed, but if the grain of mustard seed be alive it will grow to a great tree, where all the fowls of the air can lodge in the branches. Oh! it is a crying shame and sin that in all Christian communities there should be so many grey-headed babies, men who have for years and years been professing to be Christ's followers, and whose faith is but little, if at all, stronger--nay! perhaps is even obviously weaker--than it was in the first days of their profession. 'Ye have need of milk, and not of strong meat,' very many of you. And the vitality of your faith is made suspicious, not because it is feeble, but because it is not growing stronger. III. Notice the cry of infant faith.