[4.] Fourthly, Satan hath yet another piece of policy for the multiplication and aggravation of sin, which is _the enmity and opposition of the law_. Of this the apostle Paul sadly complains from his own experience: Rom. vii. 8, ‘Sin taking occasion by the commandment, wrought in me all manner of concupiscence.’ What he laments is this, that such is the perverseness of our natures, that the law, instead of restraining us, doth the more enrage us, so that accidentally the law doth multiply sin; for when the restraint of the law is before us, lust burns not only more inwardly, but when it cannot be kept in and smothered, then it breaks out with greater violence, ‘Let us break their bonds asunder,’ &c., [Ps. ii. 3.] When the law condemns our lusts, they grow surly and desperate: ‘Let us eat and drink, for to-morrow we die,’ &c., [Isa. xxii. 13.] If any wonder that the law, which was given of purpose to repress sin, and which is of so great use in its authority to kill it in us, and to hinder temptations, should thus be used by Satan to increase and enrage it, they may consider that it is but still an accidental occasion, and not a cause, and sin takes this occasion without any fault of the law. Satan to this end watcheth the time[195] when our hearts are most earnestly set upon our lusts, when our desires are most highly engaged, and then by a subtle art so opposeth the law, letting in its contradictions in way and measure suitable, that our hearts conceive a grudge at restraint, which together with its earnestness to satisfy the flesh, ariseth up to a furious madness, and violent striving to maintain a liberty and freedom to do according to the desires of their heart; whereas this same law, if it be applied to the heart when it is more cooled and not so highly engaged upon a design of lust, will break, terrify, and restrain the heart, and put such a damp upon temptations that they shall not be able to stand before it. So great a difference is there in the various seasons of the application of this law; in which art for the enflaming of the heart to iniquity, Satan shews a wonderful dexterity. CHAPTER XV. _Of Satan’s keeping all in quiet, which is his second engine for keeping his possession, and for that purpose his keeping us from going to the light by several subtleties; also of making us rise up against the light, and by what ways he doth that._