Again, this same confusion frequently happens in the case of temptations from the world. We fear worldly loss or discredit; or we hope some advantage; and we feel tempted to act so as to secure, at any rate, the worldly good, or to avoid the evil. Now in all such cases of conduct there is no end of arguing about right or wrong, if we once begin; there are numberless ways of acting, each of which may be speciously defended by argument, but plain, pure-hearted common sense, generally speaking, at the very first sight decides the question for us without argument; but if we do not listen promptly to this secret monitor, its light goes out at once, and we are left to the mercy of mere conjecture, and grope about with but second-best guides. Then seeming arguments in favour of deceit and evil compliance with the world's wishes, or of disgraceful indolence, urge us, and either prevail, or at least so confuse us, that we do not know how to act. Alas! in ancient days it happened in this way, that Christians who were brought before their heathen persecutors for punishment, because they were Christians, sometimes came short of the crown of martyrdom, "having loved this present world[4]," and so lost their way in the mazes of Satan's crafty arguments. Temptations to unbelief may also be mentioned here. Speculating wantonly on sacred subjects, and jesting about them, offend us at first; and we turn away: but if in an evil hour we are seduced by the cleverness or wit of a writer or speaker, to listen to his impieties, who can say where we shall stop? Can we save ourselves from the infection of his profaneness? we cannot hope to do so. And when we come to a better mind (if by God's grace this be afterwards granted to us), what will be our state? like the state of men who have undergone some dreadful illness, which changes the constitution of the body. That ready and clear perception of right and wrong, which before directed us, will have disappeared, as beauty of person, or keenness of eye-sight in bodily disorders; and when we begin to try to make up our minds which way lies the course of duty on particular trials, we shall bring enfeebled, unsteady powers to the examination; and when we move to act, our limbs (as it were) will move the contrary way, and we shall do wrong when we wish to do right.