While they promise them liberty,.... Not Christian liberty, which lies in a freedom from sin, its dominion, guilt, and condemnation, and in serving God with liberty, cheerfulness, and without fear; but a sinful carnal liberty, a liberty from the law of God, from obedience to it as a rule of walk and conversation, and from the laws of men, from subjection to the civil magistrate, and from servitude to masters, and obedience to parents; a liberty to lay aside and neglect the ordinances of the Gospel at pleasure, and to live in all manner of sin and wickedness; a liberty which is contrary to the nature, will, and work of Christ, to his Spirit, and to the principle of grace in the heart, and to the Gospel, and to the conduct and conversation of real saints.
Now this was the snare by which the false teachers beguiled unstable souls; liberty being what is greatly desirable to men, and is suited to their carnal lusts and interests: but a vain promise was this, whenthey themselves are the servants of corruption; of sin, which has corrupted all mankind in soul and body; and particularly the lust of uncleanness, which these men walked in, and by which they not only corrupted themselves, but the good manners of others also; and which tended and led them both to ruin and destruction, signified by the pit of corruption: and yet these very preachers, that promised liberty to others, were the servants of sin; they were under the power and government of sin.