For this reason it is by faith so that it may be by grace, with the result that the promise may be certain to all the descendants – not only to those who are under the law, but also to those who have the faith of Abraham, who is the father of us all.
[Rom 4:16 NET]
Of faith we read expressly that “it is the gift of God.” This is the grand master-grace of the soul; it is the grand wheel which moves every other wheel in the heart; it is the eye, the ear, the hand of the new man of grace. Only so far as we have faith, and the Lord draws out this faith in exercise, have we any true spiritual feeling. But what makes me prize the gift of faith? It is knowing so much and so painfully the indwelling and inworking of unbelief. Is not this the case naturally? What makes me prize health? It is having a poor, weakly body. What makes me prize rest? Fatigue. What makes me prize ease? It is pain. What makes me prize food? It is hunger. What makes me prize the cup of cold water? It is thirst. By these feelings, I not only know the reality by the lack of it, but also enjoy the blessing when communicated. It is just so spiritually, as naturally. What can I know of faith, except I am exercised (and exercised I am more or less daily) by the workings of unbelief, infidelity, questionings of the reasoning mind, and all the spawn of an unbelieving heart? As the soul is tossed up and down, (and often, it is tossed up and down on this sea of unbelief,) it learns to prize the harbor of faith. And when the Lord mercifully communicates a little faith to the soul, and faith begins to realize, feel, experience, and feed upon the truth as it is in Jesus, then we know what faith is by the possession of it.
What a mercy it is that the Lord has the gift of faith to bestow! Here are poor souls toiling, troubling, laboring, groaning, sighing, oppressed with unbelief—that great giant in the heart, who has slain his thousands and tens of thousands. How our souls sometimes sink down under this wretched unbelief! But how we prize the faith all the more when it comes! How all the sinkings make the risings higher, and all the sadness makes the change more blessed! As the tossings to and fro of the sailor upon the sea, with all the perils and sufferings of the voyage, make the calm harbor so pleasant; so all the tossings up and down of unbelief endears the holy calm of living faith to the soul.