And no marvel It is an argument from the greater to the less. "If Satan, who is the basest of all beings, nay, the head and chief of all wicked persons, transforms himself, what will his ministers do?" We have experience of both every day, for when Satan tempts us to evil, he does not profess to be what he really is. For he would lose his object, if we were made aware of his being a mortal enemy, and opposer of our salvation. Hence he always makes use of some cloak for the purpose of insnaring us, and does not immediately show his horns, (as the common expression is,) but rather makes it his endeavor to appear as an angel Even when he tempts us to gross crimes, he makes use, nevertheless, of some pretext that he may draw us, when we are off our guard, into his nets. What then, if he attacks us under the appearance of good, nay, under the very title of God? His life-guards imitate, as I have said, the same artifice. These are golden preambles -- "Vicar of Christ" -- "Successor of Peter" -- "Servant of God's servants," but let the masks be pulled off, and who and what will the Pope be discovered to be? Scarcely will Satan himself, his master, surpass so accomplished a scholar in any kind of abomination. It is a well known saying as to Babylon, that she gives poison to drink in a golden cup. (Jeremiah 51:7.) Hence we must be on our guard against masks. Should any one now ask, "Shall we then regard all with suspicion?" I answer, that the Apostle did not by any means intend this; for there are marks of discrimination, which it were the part of stupidity, not of prudence, to overlook. He was simply desirous to arouse our attention, that we may not straightway judge of the lion from the skin [1] For if we are not hasty in forming a judgment, the Lord will order it so that the ears of the animal will be discovered ere long. Farther, he was desirous in like manner to admonish us, in forming an estimate of Christ's servants, not to regard masks, but to seek after what is of more importance. Ministers of righteousness is a Hebraism for faithful and upright persons. [2]

Footnotes

1 - "Comme porte le prouerbe des Latins;" -- "As the proverb in use among the Latins runs."

2 - Beza takes the same view of this expression: "Nec enim illi dicuntur sese transfigurare in Satanam, sed in ministros propos et integros, quibus opponuntur dolioi. Hoc enim declarat epitheton justitiae ex Hebraeorum idiotismo;" -- "For they are not said to transform themselves into Satan, but into ministers, who are honest and upright, as contrasted with those who are (dolioi) deceitful. For this is the import of the epithet, of righteousness, according to the Hebrew idiom." Another instance of the same Hebrew idiom is noticed by Calvin in [61]p. 196. -- Ed.

And no marvel - And it is not wonderful, 2-Corinthians 11:15. Since Satan himself is capable of appearing to be an angel of light, it is not to be deemed strange that those who are in his service also should resemble him.
For Satan himself is transformed - That is, he who is an apostate angel; who is malignant and wicked; who is the prince of evil, assumes the appearance of a holy angel. Paul assumes this as an indisputable and admitted truth, without attempting to prove it, and without referring to any particular instances. Probably he had in his eye cases where Satan put on false and delusive appearances for the purpose of deceiving, or where he assumed the appearance of great sanctity and reverence for the authority of God. Such instances occurred in the temptation of our first parents Genesis 3:1-6, and in the temptation of the Saviour, Matt. 4. The phrase "an angel of light," means a pure and holy angel, light being the emblem of purity and holiness. Such are all the angels that dwell in heaven; and the idea is, that Satan assumes such a form as to appear to be such an angel. Learn here:
(1) His power. He can assume such an aspect as he pleases. He can dissemble and appear to be eminently pious. He is the prince of duplicity as well as of wickedness; and it is the consummation of bad power for an individual to be able to assume any character which he pleases.
(2) his art. he is long practiced in deceitful arts. For six thousand years he has been practicing the art of delusion. And with him it is perfect.
(3) we are not to sup pose that all that appears to be piety is piety. Some of the most plausible appearances of piety are assumed by Satan and his ministers. None ever professed a profounder regard for the authority of God than Satan did when he tempted the Saviour. And if the prince of wickedness can appear to be an angel of light, we are not to be surprised if those who have the blackest hearts appear to be people of most eminent piety.
(4) we should be on our guard. We should not listen to suggestions merely because they appear to come from a pious man, nor because they seem to be prompted by a regard to the will of God. We may be always sure that, if we are to be tempted, it will be by some one having a great appearance of virtue and religion.
(5) we are not to expect that Satan will appear to man to be as bad as he is. He never shows himself openly to be a spirit of pure wickedness; or black and abominable in his character; or full of evil and hateful. He would thus defeat himself. It is for this reason that wicked people do not believe that there is such a being as Satan. Though continually under his influence and "led captive by him at his will," yet they neither see him nor the chains which lead them, nor are they willing to believe in the existence of the one or the other.

And no marvel - Και ου θαυμαστον· And no wonder; it need not surprise you what the disciples do, when you consider the character of the master.
Satan himself is transformed into an angel of light - As in 2-Corinthians 11:3 the apostle had the history of the temptation and fall of man particularly in view, it is very likely that here he refers to the same thing. In what ever form Satan appeared to our first mother, his pretensions and professions gave him the appearance of a good angel; and by pretending that Eve should get a great increase of light, that is, wisdom and understanding, he deceived her, and led her to transgress. It is generally said that Satan has three forms under which he tempts men:
1. The subtle serpent.
2. The roaring lion.
3. The angel of light.
He often, as the angel of light, persuades men to do things under the name of religion, which are subversive of it. Hence all the persecutions, faggots, and fires of a certain Church, under pretense of keeping heresy out of the Church; and hence all the horrors and infernalities of the inquisition. In the form of heathen persecution, like a lion he has ravaged the heritage of the Lord. And by means of our senses and passions, as the subtle serpent, he is frequently deceiving us, so that often the workings of corrupt nature are mistaken for the operations of the Spirit of God.

And no marvel; for Satan himself is transformed into an angel of (k) light.
(k) By light is meant the heavenly glory, of which the angels are partakers.

And no marvel,.... This need not be wondered at, nor is it any new or strange thing; nor should it be thought to be incredible that there are such persons in being:
for Satan himself is transformed into an angel of light; a good angel, one that has his abode in the regions of light; and is possessed of divine and spiritual light and understanding; who is clothed and arrayed with light, this is his form and essence. The apostle speaks agreeably to the notion, of the Jews, who say (t),
"rwa Mh Mlk Mykalmhv, "that all the angels are light", the clothing of God himself;''
and they have a distinction between , "angels of the day", and angels of the night (u): now Satan, the enemy of mankind, sometimes appears in the form of one of these; as he did to Eve in the garden, and to Christ in the wilderness; and by such appearances he often imposes on mankind; pretends the greatest friendship, when he designs nothing but ruin; and under a notion of good, either honest, or pleasant, or profitable, draws on into the commission of the greatest evils; and, under a show of truth, introduces the most notorious falsehoods and errors; and, under a pretence of religion, all sorts of idolatry, superstition, and impiety; it is in this way he has succeeded in his enterprises and temptations; these are his wiles, stratagems, and cunning devices.
(t) R. Abraham Seba, Tzeror Hammor, fol. 18. 4. (u) Zohar in Numb. fol. 91. 1. & 93. 3.

is transformed--rather, "transforms himself" (compare Job 1:6); habitually; the first occasion of his doing so was in tempting Eve. "Himself" is emphatical: If their master himself, who is the "prince of darkness," the most alien to light, does so, it is less marvellous in the case of them who are his servants (Luke 22:54; Ephesians 6:12).

Satan himself is transformed - Uses to transform himself; to put on the fairest appearances.