Having eyes; he mentions the eyes, both because they let in the objects of lust into the heart, Job_31:1Mat_5:28, and because the signs of lust in the heart appear especially in the eyes, Gen_39:7Pro_6:25.
Full of adultery; full of an adulteress, which either may be a Hebraism, the concrete being put for the abstract, as drunken for drunkenness, and thirsty for thirst, Deu_29:19; or it may be a proverbial expression of the wretchedness of such men’s hearts, when they still carried an adulteress in their eyes.
That cannot cease from sin; never satisfied with looking upon, or still looking about for, such objects as might inflame their lusts; or still seeking with wanton looks to entice others to folly.
Beguiling; either alluring them by their wantonness to embrace their false doctrines, promising them pleasures and carnal liberties, 2Pe_2:18; or enticing them to lewdness, by instilling false doctrines into them, which tend to licentiousness.
Unstable souls; those that were not well grounded in the faith and doctrine of holiness, who might therefore easily be drawn aside.
An heart they have exercised with covetous practices; a heart wholly intent upon getting gain, accustomed to it, and skilful in it.
Practices; the word is in the plural number, to show that the seducers had several arts and ways of exercising their covetousness.
Cursed children; Greek, children of the curse. It may be taken either actively, for such as were causes of a curse, brought a curse with them; or passively, for such as were worthy of a curse, or obnoxious to it; as children of wrath, Eph_2:3.