17 So this I say and solemnly testify in [the name of] the Lord [as in His presence], that you must no longer live as the heathen (the Gentiles) do in their perverseness [in the folly, vanity, and emptiness of their souls and the futility] of their minds.
18 Their moral understanding is darkened and their reasoning is beclouded. [They are] alienated (estranged, self-banished) from the life of God [with no share in it; this is] because of the ignorance (the want of knowledge and perception, the willful blindness) that is deep-seated in them, due to their hardness of heart [to the insensitiveness of their moral nature].
19 In their spiritual apathy they have become callous and past feeling and reckless and have abandoned themselves [a prey] to unbridled sensuality, eager and greedy to indulge in every form of impurity [that their depraved desires may suggest and demand].
20 But you did not so learn Christ!
21 Assuming that you have really heard Him and been taught by Him, as [all] Truth is in Jesus [embodied and personified in Him],
22 Strip yourselves of your former nature [put off and discard your old unrenewed self] which characterized your previous manner of life and becomes corrupt through lusts and desires that spring from delusion;
23 And be constantly renewed in the spirit of your mind [having a fresh mental and spiritual attitude],