Commentary on the Gospel According to John John Calvin
John Calvin profited by hearing a single word? So much the more ought we to labor with zeal to arouse our sluggishness, and, above all, to pray that God would touch our hearts in such a manner, that we may not be less willing to believe than He is ready and gracious to promise.
51. While he was still going down. Here is described the effect of faith, together with the efficacy of the word; for as Christ, by a word, restores to life this child who was just dying, so in one moment the father, by his faith, regains his son safe and sound. Let us therefore know that, whenever the Lord offers his benefits to us, his power will always be ready to accomplish whatever he promises, provided that the door be not shut against him by our unbelief. It does not always happen, I acknowledge, and even is not frequent or ordinary, that God instantly displays his arm for giving us assistance; but whenever he delays, he has always a good reason, and one that is highly advantageous to us. This at least is certain, that so far is he from delaying unnecessarily, that he rather contends with the obstacles which we throw in the way; and, therefore, when we do not see his immediate aid, let us consider how much of concealed distrust there is in us, or at least how small and limited our faith is. And we ought not to wonder if He is unwilling to allow his benefits to be lost, or to throw them at random on the ground, but chooses to bestow them on those who, by opening the bosom of their faith, are ready to receive them. And though he does not always assist his people in the same manner, yet in no instance will the faith of any one be fruitless, or hinder us from experiencing the truth of what the Prophet says, that the promises of God, even when they seem to delay, are in reality making great haste.
Though it tarry, wait for it; because it will surely come, it will not tarry, (Habakkuk 2:3.)
52. Therefore he inquired at them. That this courtier asked his servants at what time his son began to recover, was done by a secret impulse from God, that the truth of the miracle might be rendered more conspicuous. For by nature we have an exceedingly wicked disposition to extinguish the light of the power of God, and Satan labors, by various means, to hide the works of God from our view; and, therefore, in order that they may obtain from us that praise which is due to them, they must be made so manifest that no room is left for doubt. Whatever then may be the ingratitude of men, still this circumstance does not permit so illustrious a work of Christ to be ascribed to chance.
53. And he believed, and his whole house. It may appear absurd that the Evangelist should mention this as the commencement of faith in that man, whose faith he has already commended. Nor can it be supposed that the word believe — at least in this passage — relates to the progress of faith. But it must be understood that this man, being a Jew and educated in the doctrine of the Law, had already obtained some taste of faith when he came to Christ; and that he afterwards believed in the saying of Christ