So here we have a self-revelation, as by one glimpse into a great chamber, of the deep heart of Christ, the great Teacher, moved to astonishment, grief, and indignation.
II. Now let me say a word about the slow scholars.
I have spoken of these questions as being rapid and repeated, and as a rain of what we may almost call fiery interrogation. But they are by no means tautology or useless and aimless repetition. If we look at them closely, I think we shall see that they open out to us several different sides and phases of the fault in His disciples that moves these emotions.
There is, first, His scholars' stolid insensibility, which moves Him to anger, to astonishment, and to grief. 'Are your hearts yet hardened?' by which is meant, not hardened in the sense of being suddenly and stiffly set in antagonism to Him, but simply in the sense of being--may I use the word?--so pachydermatous, so thick-skinned, that nothing can go through them. They showed it is a dull, stolid insensibility, and it marks some of us professing Christians, on whom promises and invitations and revelations of truth all fall with equal ineffectiveness, and from whom they glide off with equal rapidity. You may rain upon a black basalt rock to all eternity, and nothing will grow upon it. All the drops will run down the polished sides, and a quarter of an inch below the surface it will be as dry as it was before the first drop fell. And here are we Christian ministers, talk--talk--talking, week in and week out; and here is Christ, by His providences and by His word, speaking far more loudly than any of us; and it all falls with absolute impotence on hosts of people that call themselves Christians. Ah! brethren, it is not only unbelievers who have their hearts hardened. Orthodox professors are often guilty of the same. If I might alter the metaphor, many of us have waterproofed our minds, and the ingredients of the mixture by which we have waterproofed them are our knowledge of 'the plan of salvation,' our connection with a Christian community, our membership in a church, our obedience to the formalisms of the devout life. All these have only made a non-transmitting medium interposed between ourselves and the concentrated electric energy that ever flashes from Jesus Christ. Our hardened hearts, with their stolid insensibility, amaze our Master, and no wonder that they do.
But that is not all. There is not only what I have ventured to call stolid insensibility, but, as a result of it, there is the not using the capacities that we have. 'Having eyes, see ye not? Having ears, hear ye not?' We are not like children that cannot, but like careless, untrained schoolboys that will not, learn. We have the capacity, and it is our own fault that we are dunces in the school, and at the bottom of the class. Use the power that you have, and 'unto him that hath shall be given, and he shall have in abundance.' There are fishes in the caverns of North America that have lived so long in the dark, underground channels, that the present generation of them has no eyes. We are doing our best to deprive ourselves of our capacities of beholding by refusing to use them. 'Having eyes, see ye not?' Our non-use of the powers we have amazes and grieves our Master.
Further, the reason why there are this stolid insensibility and this non-use of capacity lies here: 'Ye reason about the bread.' The absorption of our minds and efforts and time with material things, that perish with the using, come in between us and our apprehension of Christ's teaching. Ah! brethren, it is not only the rich man that is swallowed up with the present world; the poor man may be so as really. All of us, by reason of the absolute necessities of our lives, are in danger of getting our hearts so filled and crowded with the things that are 'seen and temporal' that we have no time, nor room, for the things that are 'unseen and eternal.' I do not need to elaborate that point. We all know that it is there that our danger, in various forms, lies. If you in the bows of the ship are reasoning about bread, you will misunderstand Christ in the stern warning against 'the leaven of the Pharisees.'