Since this whole description is meant to carry its lesson by suggestion of contrast, the clause last referred to brings powerfully before us the place to be given to the spiritual mind in our conception of a true Christian life. In the eighth chapter of the Epistle to the Romans we are told that to be carnally minded--or the minding of the flesh--is death, but the minding of the spirit is life and peace. Care, therefore, is to be taken of our thoughts and of our practical judgments, so that they may be according to the spirit. Effort in this direction is hopeful effort, because we believe that Christ grants His Spirit to hallow those regions of the inward man by His illuminating and purifying presence. It cannot be doubted that many lives that were capable of yielding much good fruit, have been frittered away and wasted through indulged vanity of thought. Others, that are methodical and energetic enough, are made sterile for Christian ends by the too common absence or the too feeble presence of the spiritual mind. It is not altogether direct meditation on spiritual objects that is here to be enforced. That has its important place; yet certainly, frank converse with the whole range of human interests is legitimately open to the Christian mind. What seems to be essential is that, through all, the regard to the supreme interests shall continue; and that the manner of thinking and of judging, the modes of feeling and impression, shall keep true to faith and love and Christ. The subject recurs in another form at the eighth verse of the following chapter. Probably, as was said, the Apostle is speaking of a class of men whose faults were gross, so that at least an Apostolic eye could not hesitate to read the verdict that must be passed upon them. But then we must consider that his object in doing this was to address a warning to men to whom he imputed no such gross failings; concerning whom, indeed, he was persuaded far other things, even things that accompany salvation; but whom he knew to be exposed to influences tending in the same direction, and whom he expected to see preserved only in the way of vigilance and diligence. Outstanding failures in Christian profession may startle us by their conspicuous deformity; but they fail to yield us their full lesson unless they suggest the far finer and more subtle forms in which the same evils may enter in, to mar or to annul what seemed to be Christian characters.