² Do not be conformed to this world (this age), [fashioned after and adapted to its external, superficial customs], but be transformed (changed) by the [entire] renewal of your mind [by its new ideals and its new attitude], so that you may prove [for yourselves] what is the good and acceptable and perfect will of God, even the thing which is good and acceptable and perfect [in His sight for you].

²³ For if anyone only listens to the Word without obeying it and being a doer of it, he is like a man who looks carefully at his [own] natural face in a mirror;

²⁴ For he thoughtfully observes himself, and then goes off and promptly forgets what he was like.

²⁵ But he who looks carefully into the faultless law, the [law] of liberty, and is faithful to it and perseveres in looking into it, being not a heedless listener who forgets but an active doer [who obeys], he shall be blessed in his doing (his life of obedience).