James 1:14

So far the inspired Apostle has spoken of the outward part of temptation; now he lays bare the inner — for we suffer the two-fold evil. From without come the whispers of Satan, by himself or his legionaries, skilled in all that may entice and delude the unwary soul. And if the doctrine be true that to every one a guardian angel is appointed, so also would seem to be the opposite idea, that each has some demon of the pit watching him incessantly, and commissioned specially for his utter destruction. How terrible must be the skill of such assailants, experienced in the arts which have deceived mankind since the first fatal day. But there is the limit of external power in this matter; the ablest and subtlest fiend can but guess what is passing in its victim’s mind, and shape its snares accordingly. God only is the discerner of hearts, and the “spirit of man which is in him” alone, with its Maker, “knoweth the things of a man” (1 Corinthians 2:11). The Holy Spirit “searcheth all things” (James 1:10), and all are manifest in His sight (Hebrews 4:13), but to no less than His own omniscience. Satan, therefore, can merely act on his general knowledge of human nature, aided by particular guesses at the individual before him, whom he fain would destroy. He has learned too well the deep corruption of the heart, and knows what gaudy bait will most attract the longing and licentious eyes.

Every man is tempted when he is drawn away of (or, by) his own lust, and enticed. — Evil humanity thrills responsive as a harp played by a cunning hand; but no power of hell can force its way through the barriers which God the Holy Ghost erects around the faithful and confiding soul: only by treason of the man himself can the great enemy enter in and reign.