JMNT(i)
2 And stop constantly conforming yourselves to (or, as passive: So then, quit being repeatedly molded by, fashioned for or patterned together with)
this age [with other MSS: and not to be continuously configured to this age, or not to constantly remodel yourself for this age],
but on the contrary, be progressively transformed (transfigured; changed in form and semblance)
by the renewing (or: in the renewal; for the making-back-up-new again)
of your mind [with other MSS: from The Mind; of the intellect; pertaining to the faculties of perceiving and understanding; of the mindset, disposition, inner orientation and world view]
into the [situation and condition for] you folks to be habitually examining in order to be testing and, after scrutiny, distinguishing and approving what [is] God's will (design; purpose; resolve; intent)
: the good and well-pleasing, even perfect (finished, complete and destined)
! (or: = the thing [that is] virtuous, satisfying and able to succeed in its purpose.)