12 Blessed is the man that endureth temptation: for when he is tried, he shall receive the crown of life, which the Lord hath promised to them that love him.
12 Beatus vir qui suffert temptationem; quod quum probatus fuerit, accipiet coronam vitae, quam promisit Deus diligentibus ipsum.
13 Let no man say when he is tempted, I am tempted of God: for God cannot be tempted with evil, neither tempteth he any man:
13 Nemo quum tentatur dicat, a Deo tentor; Deus enim nec tentari malis potest, nec quenquam tentat.
14 But every man is tempted, when he is drawn away of his own lust, and enticed.
14 Sed unusquisque tentatur, dum a sua concupiscentia abstrahitur, et inescatur.
15 Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death.
15 Postquam antum concupiscentia conceperit, parit peccatum vero perfectum generat mortem.
12 Blessed is the man. After having applied consolation, he moderated the sorrow of those who were severely handled in this world, and again humbled the arrogance of the great. He now draws this conclusion, that they are happy who magnanimously endure troubles and other trials, so as to rise above them. The word temptation may indeed be otherwise understood, even for the stings of lusts which annoy the soul within; but which is here commended, as I think, is fortitude of mind in enduring adversities. It is, however, a paradox, that they are not happy to whom all things come according to their wishes, but such as are not overcome with evils.
For when he is tried. He gives a reason for the preceding sentence; for the crown follows the contest. If, then, it be our chief happiness to be crowned in the kingdom of God, it follows, that the contests with which the Lord tries us, are aids and helps to our happiness. Thus the argument is from the end or the effect: hence we conclude, that the faithful are harassed by so many evils for this purpose, that their piety and obedience may be made manifest, and that they may be thus at length prepared to receive the crown of life.
But they reason absurdly who hence infer that we by fighting merit the crown; for since God has gratuitously appointed it for us, our fighting only renders us fit to receive it.
He adds, that it is promised to those who love God. By speaking thus, he means not that the love of man is the cause of obtaining the crown, (for God anticipates us by his gratuitous love;) but he only intimates that the elect who love him are alone approved by God. He then reminds us that the conquerors of all temptations are those who love God, and that we fail not in courage when we are tried, for no other cause than because the love of the world prevails in us.
13 Let no man, when he is tempted. Here, no doubt, he speaks of another kind of temptation. It is abundantly evident that the external temptations, hitherto mentioned, are sent to us by God. In this way God tempted Abraham, (Genesis 22:1,) and daily tempts us, that is, he tries us as to what are we by laying before us an occasion by which our hearts are made known. But to draw out what is hid in our hearts is a far different thing from inwardly alluring our hearts by wicked lusts.
He then treats here of inward temptations which are nothing else than the inordinate desires which entice to sin. He justly denies that God is the author of these, because they flow from the corruption of our nature.
This warning is very necessary, for nothing is more common among men than to transfer to another the blame of the evils they commit; and they then especially seem to free themselves, when they ascribe it to God himself. This kind of evasion we constantly imitate, delivered down to us as it is from the first man. For this reason James calls us to confess our own guilt, and not to implicate God, as though he compelled us to sin.
But the whole doctrine of scripture seems to be inconsistent with this passage; for it teaches us that men are blinded by God, are given up to a reprobate mind, and delivered over to filthy and shameful lusts. To this I answer, that probably James was induced to deny that we are tempted by God by this reason, because the ungodly, in order to form an excuse, armed themselves with testimonies of Scripture. But there are two things to be noticed here: when Scripture ascribes blindness or hardness of heart to God, it does not assign to him the beginning of this blindness, nor does it make him the author of sin, so as to ascribe to him the blame: and on these two things only does James dwell.
Scripture asserts that the reprobate are delivered up to depraved lusts; but is it because the Lord depraves or corrupts their hearts? By no means; for their hearts are subjected to depraved lusts, because they are already corrupt and vicious. But since God blinds or hardens, is he not the author or minister of evil? Nay, but in this manner he punishes sins, and renders a just reward to the ungodly, who have refused to be ruled by his Spirit. (Romans 1:26.) It hence follows that the origin of sin is not in God, and no blame can be imputed to him as though he took pleasure in evils. (Genesis 6:6.)
The meaning is, that man in vain evades, who attempts to cast the blame of his vices on God, because every evil proceeds from no other fountain than from the wicked lust of man. And the fact really is, that we are not otherwise led astray, except that every one has his own inclination as his leader and impeller. But that God tempts no one, he proves by this, because he is not tempted with evils  For it is the devil who allures us to sin, and for this reason, because he wholly burns with the mad lust of sinning. But God does not desire what is evil: he is not, therefore, the author of doing evil in us.
14 When he is drawn away by his own lust. As the inclination and excitement to sin are inward, in vain does the sinner seek an cause from an external impulse. At the same time these two effects of lust ought to be noticed — that it ensnares us by its allurements, and that it does us away; each of which is sufficient to render us guilty. 
15 Then when lust hath conceived. He first calls that lust which is not any kind of evil affection or desire, but that which is the fountain of all evil affections; by which, as he shews, are conceived vicious broods, which at length break forth into sins. It seems, however, improper, and not according to the usage of Scripture, to restrict the word sin to outward works, as though indeed lust itself were not a sin, and as though corrupt desires, remaining closed up within and suppressed, were not so many sins. But as the use of a word is various, there is nothing unreasonable if it be taken here, as in many other places, for actual sin.
And the Papists ignorantly lay hold on this passage, and seek to prove from it that vicious, yea, filthy, wicked, and the most abominable lusts are not sins, provided there is no assent; for James does not shew when sin begins to be born, so as to be sin, and so accounted by God, but when it breaks forth. For he proceeds gradually and shews that the consummation of sin is eternal death, and that sin arises from depraved desires, and that these depraved desires or affections have their root in lust. It hence follows that men gather fruit in eternal perdition, and fruit which they have procured for themselves.
By perfected sin, therefore, I understand, not any one act of sin perpetrated, but the completed course of sinning. For though death is merited by every sin whatever, yet it is said to be the reward of an ungodly and wicked life. Hence is the dotage of those confuted who conclude from these words, that sin is not mortal until it breaks forth, as they say, into an external act. Nor is this what James treats of; but his object was only this, to teach that there is in us the root of our own destruction.
 Literally, "untemptable by evils," that is, not capable of being tempted or seduced by evils, by things wicked and sinful. He is so pure, that he is not influenced by any evil propensities, that he is not subject to any evil suggestions. It hence follows that he tempts or seduces no man to what is sinful. Being himself unassailable by evils, he cannot seduce others to what is evil. As God cannot be tempted to do what is sinful, he cannot possibly tempt others to sin. The words may thus be rendered, -- 13. "Let no one, when seduced, say, By God I am seduced;' for God is not capable of being seduced by evils, and he himself seduceth no one."  The words are very striking, -- "But every one is tempted (or, seduced) when, by his own lust, he is drawn away, (that is, from what is good,) and is caught by a bait (or, ensnared.)" He is in the first drawn off from the line of duty, and then he is caught by something that is pleasing and plausible, but like the bait, it has in it a deadly hook.
 The words are very striking, -- "But every one is tempted (or, seduced) when, by his own lust, he is drawn away, (that is, from what is good,) and is caught by a bait (or, ensnared.)" He is in the first drawn off from the line of duty, and then he is caught by something that is pleasing and plausible, but like the bait, it has in it a deadly hook.