In all trust in God there are two elements: a sense of need and of evil and weakness, and a confidence more or less unshaken and strong in Him, His love and power and all-sufficiency; and unless both of these two be in the heart, it is, in the nature of things, impossible, and will be impossible to all eternity, that purity and strength and peace and joy, and all the blessings which Christ delights to give to faith, should ever be ours.
Unbelief, distrust of Him, which separates us from Him and closes the heart fast against His grace, must cut us off from that which it does not feel that it needs, nor cares to receive; and must interpose a non-conducting medium between us and the electric influences of His might. When Christ was on earth, man's want of faith dammed back His miracle-working power, and paralysed His healing energy. How strange that paradox sounds at first hearing, which brings together Omnipotence and impotence, and makes men able to counter-work the loving power of Christ. 'He could there do no mighty work.' The Evangelist intends a paradox, for he uses two kindred words to express the inability and the mighty work; and we might paraphrase the saying so as to bring out the seeming contradiction: 'He there had no power to do any work of power.' The same awful, and in some sense mysterious, power of limiting and restraining the influx of His love belongs to unbelief still, whether it take the shape of active rejection, or only of careless, passive non-reception. For faith makes us partakers of divine power by the very necessity of the case, and that power can attach itself to nothing else. So, 'if thou canst believe, all things are possible to him that believeth.'
Still further, we may observe that there is involved here the principle that our faith determines the amount of our power. That is true in reference to our own individual religious life, and it is true in reference to special capacities for Christ's service. Let me say a word or two about each of these. They run into each other, of course, for the truest power of service is found in the depth and purity of our own personal religion, and on the other hand our individual Christian character will never be deep or pure unless we are working for the Master. Still, for our present purpose, these two inseparable aspects of the one Christian life may be separated in thought.
As to the former, then, the measure of my trust in Christ is the measure of all the rest of my Christian character. I shall have just as much purity, just as much peace, just as much wisdom or gentleness or love or courage or hope, as my faith is capable of taking up, and, so to speak, holding in solution. The 'point of saturation' in a man's soul, the quantity of God's grace which he is capable of absorbing, is accurately measured by his faith. How much do I trust God? That will settle how much I can take in of God.
So much as we believe, so much can we contain. So much as we can contain, so much shall we receive. And in the very act of receiving the 'portion of our Father's goods that falleth' to us, we shall feel that there is a boundless additional portion ready to come as soon as we are ready for it, and thereby we shall be driven to larger desires and a wider opening of the lap of faith, which will ever be answered by 'good measure, pressed together and running over, measured into our bosoms.' But there will be no waste by the bestowment of what we cannot take. 'According to your faith, be it unto you.' That is the accurate thermometer which measures the temperature of our spiritual state. It is like the steam-gauge outside the boiler, which tells to a fraction the pressure of steam within, and so the power which can at the moment be exerted.