And if this be true, if unbelief in Jesus Christ be indeed all this that I have sketched out, another question arises, What does such an attitude and act indicate as to the rejector? He stands in the presence of the loveliest revelation of the divine nature and heart, and he sees no light in it. Why, but because he has blinded his eyes and cannot behold? He is incapable of seeing 'God manifest in the flesh,' because he 'loves the darkness rather than the light.' He turns away from the revelation of the loveliest and most self-sacrificing love. Why, but because he bears in himself a heart cased with brass and triple steel of selfishness, against the manifestation of love? He turns away from the offered hands heaped with the blessings that he needs. Why, but because he does not care for the gifts that are offered? Forgiveness, cleansing, purity a heaven which consists in the perfecting of all these, have no attractions for him. The fugitive Israelites in the wilderness said, 'We do not want your light, tasteless manna. It may do very well for angels, but we have been accustomed to garlic and onions down in Egypt. They smell strong, and there is some taste in _them_. Give us _them_.' And so some of you say, 'The offer of pardon is of no use to me, for I am not troubled with my sin. The offer of purity has no attraction to me, for I rather like the dirt and wallowing in it. The offer of a heaven of your sort is but a dreary prospect to me. And so I turn away from the hands that offer precious things.' The man who is blind to the God that beams, lambent and loving, upon him in the face of Jesus Christ--the man who has no stirrings of responsive gratitude for the great outpouring of love upon the Cross--the man who does not care for anything that Jesus Christ can give him, surely, in turning away, commits a real sin.
I do not deny, of course, that there may be intellectual difficulties cropping up in connection with the acceptance of the message of salvation in Jesus Christ, but as, on the one hand, I am free to admit that many a man may be putting a true trust in Christ which is joined with a very hesitant grasp of some of the things which, to me, are the very essence and heart of the Gospel; so, on the other side, I would have you remember that there is necessarily a moral quality in our attitude to all moral and religious truth; and that sin does not cease to be sin because its doer is a thinker or has systematised his rejection into a creed. Though it is not for us to measure motives and to peer into hearts, at the bottom there lies what Christ Himself put His finger on: 'Ye _will_ not come to me that ye might have life.'
Then, still further, let me remind you that our Lord here presents this fact of man's unbelief as being an instance in which we may see what the real nature of sin is. To use learned language, it is a 'typical' sin. In all other acts of sin you get the poison manipulated into various forms, associated with other elements, disguised more or less. But here, because it is purely an inward act having relation to Jesus Christ, and to God manifested in Him, and not done at the bidding of the animal nature, or of any of the other strong temptations and impulses which hurry men into gross and coarse forms of manifest transgression, you get sin in its essence. Belief in Christ is the surrender of myself. Sin is living to myself rather than to God. And there you touch the bottom. All those different kinds of sin, however unlike they may be to one another--the lust of the sensualist, the craft of the cheat, the lie of the deceitful, the passion of the unregulated man, the avarice of the miser--all of them have this one common root, a diseased and bloated regard to self. The definition of sin is,--living to myself and making myself my own centre. The definition of faith is,--making Christ my centre and living for Him. Therefore, if you want to know what is the sinfulness of sin, there it is. And if I may use such a word in such a connection, it is all packed away in its _purest_ form in the act of rejecting that Lord.