That ye put off. He demands from a Christian man repentance, or a new life, which he makes to consist of self-denial and the regeneration of the Holy Spirit. Beginning with the first, he enjoins us to lay aside, or put off the old man, employing the metaphor of garments, which we have already had occasion to explain. The old man, -- as we have repeatedly stated, in expoundingthe sixth chapter of the Epistle to the Romans, and other passages where it occurs, -- means the natural disposition which we bring with us from our mother's womb. In two persons, Adam and Christ, he describes to us what may be called two natures. As we are first born of Adam, the depravity of nature which we derive from him is called the Old man; and as we are born again in Christ, the amendment of this sinful nature is called the New man. In a word, he who desires to put off the old man must renounce his nature. To suppose that the words Old and New contain an allusion to the Old and New Testaments, is exceedingly unphilosophical. Concerning the former conversation. To make it more evident that this exhortation to the Ephesians was not unnecessary, he reminds them of their former life. "Before Christ revealed himself to your minds, the old man reigned in you; and therefore, if you desire to lay him aside, you must renounce your former life." Which is corrupted. He describes the old man from the fruits, that is, from the wicked desires, which allure men to destruction; for the word, corrupt, alludes to old age, which is closely allied to corruption. Let us beware of considering the deceitful lusts, as the Papists do, to mean nothing more than the gross and visible lusts, which are generally acknowledged to be base. The word includes also those dispositions which, instead of being censured, are sometimes applauded, -- such as ambition, cunning, and everything that proceeds either from self-love or from want of confidence in God.

That ye put off - That you lay aside, or renounce. The manner in which the apostle states those duties, renders it not improbable that there had been some instruction among them of a contrary character, and that it is possible there had been some teachers there who had not enforced, as they should bare done, the duties of practical religion.
Concerning the former conversation - The word "conversation" here means conduct - as it commonly does in the Bible; see the notes, 2-Corinthians 1:12. The meaning here is, "with respect to your former conduct or habits of life, lay aside all that pertained to a corrupt and fallen nature." You are not to lay "everything" aside that formerly pertained to you. Your dress, and manners, and modes of speech and conversation, might have been in many respects correct. But everything that proceeded from sin; every habit, and custom, and mode of speech and of conduct that was the result of depravity, is to be laid aside. The special characteristics of an unconverted man you are to put off, and are to assume those which are the proper fruits of a renewed heart.
The old man - see the notes on Romans 6:6.
Which is corrupt according to the deceitful lusts - The meaning is:
(1) That the unrenewed man is not under the direction of reason and sound sense, but is controlled by his "passions and desires." The word "lusts," has a more limited signification with us than the original word. That word we now confine to one class of sensual appetites; but the original word denotes any passion or propensity of the heart. It may include avarice, ambition, the love of pleasure, or of gratification in any way; and the meaning here is, that the heart is by nature under the control of such desires.
(2) those passions are deceitful. They lead us astray, They plunge us into ruin. All the passions and pleasures of the world are illusive. They promise more than they perform; and they leave their deluded votaries to disappointment and to tears. Nothing is more "deceitful" than the promised pleasures of this world; and all who yield to them find at last that they "flatter but to betray."

That ye put off - And this has been one especial part of our teaching, that ye should abandon all these, and live a life totally opposite to what it was before.
The old man - See the note on Romans 6:6, and especially see the notes on Romans 13:13, Romans 13:14 (note).
Which is corrupt - The whole of your former life was corrupt and abominable; ye lived in the pursuit of pleasure and happiness; ye sought this in the gratification of the lusts of the flesh; and were ever deceived by these lusts, and disappointed in your expectations.

That ye put off concerning the former conversation (e) the old man, which is corrupt according to the deceitful lusts;
(e) Yourselves.

That ye put off concerning the former conversation, the old man,.... Which is the corruption of nature; why this is called a man, and an old man; see Gill on Romans 6:6, the putting him off, is not a removing him from the saints, nor a destroying him in them, nor a changing his nature; for he remains, and remains alive, and is the same old man he ever was, in regenerate persons; but it is a putting him off from his seat, and a putting him down from his government; a showing no regard to his rule and dominion, to his laws and lusts, making no provision for his support; and particularly, not squaring the life and conversation according to his dictates and directions; and therefore it is called a putting him off, concerning the former conversation: the change lies not, in the old man, who can never be altered, but in the conversation; he is not in the same power, but he retains the same sinful nature; he is put off, but he is not put out; and though he does not reign, he rages, and often threatens to get the ascendant: these words stand either in connection with Ephesians 4:17 and so are a continuation and an explanation of that exhortation; or else they point out what regenerate souls are taught by Christ to do, to quit the former conversation, to hate the garment spotted with the flesh, and to put it off; for the allusion is to the putting off of filthy garments, as the works of the flesh may be truly called, which flow from the vitiosity of nature, the old man:
which is corrupt according to the deceitful lusts; the old man, or the vitiosity of nature, has its lusts; and these are deceitful; they promise pleasure and profit, but yield neither in the issue; they promise liberty, and bring into bondage; they promise secrecy and impunity, but expose to shame, and render liable to punishment; they sometimes put on a religious face, and so deceive, and fill men with pride and conceit, who think themselves to be something, when they are nothing: and through these the old man is corrupt; by these the corruption of nature is discovered; and the corruption that is in the world is produced hereby; and these make a man deserving of, and liable to the pit of corruption; and this is a good reason, why this corrupt old man, with respect to the life and conversation, should be put off.

That ye--following "Ye have been taught" (Ephesians 4:21).
concerning the former conversation--"in respect to your former way of life."
the old man--your old unconverted nature (Romans 6:6).
is corrupt according to the deceitful lusts--rather, "which is being corrupted ('perisheth,' compare Galatians 6:8, 'corruption,' that is, destruction) according to (that is, as might be expected from) the lusts of deceit." Deceit is personified; lusts are its servants and tools. In contrast to "the holiness of the truth," Ephesians 4:24, and "truth in Jesus," Ephesians 4:21; and answering to Gentile "vanity," Ephesians 4:17. Corruption and destruction are inseparably associated together. The man's old-nature-lusts are his own executioners, fitting him more and more for eternal corruption and death.

The old man - That is, the whole body of sin. All sinful desires are deceitful; promising the happiness which they cannot give.