12 I appeal to you therefore, brethren, and beg of you in view of [all] the mercies of God,
to make a decisive dedication of your bodies [presenting all your members and faculties]
as a living sacrifice, holy (devoted, consecrated) and well pleasing to God,
which is your reasonable (rational, intelligent) service and spiritual worship.
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].
==============================
22 But be doers of the word, and not hearers only, deceiving yourselves.
James 4:6 New Revised Standard Version Catholic Edition (NRSVCE)
6 But he gives all the more grace; therefore it says,
5 Examine and test and evaluat
and showing the proper fruits of it. Test and prove yourselves
Do you not yourselves realize and know [thoroughly by an ever-increasing experience]
that Jesus Christ is in you—unless you are [counterfeits] disapproved on trial and rejected?
==============================
3 For if anyone thinks himself to be something, when he is nothing, he deceives himself.
==============================
2 Those who think they know something do not yet know anything as they should.
26 He said to him, “What is written in the law? What do you read there?”
27 He answered, “You shall love the Lord your God with all your heart, and with all your soul,
and with all your strength, and with all your mind; and your neighbor as yourself.”
28 And he said to him, “You have given the right answer; do this, and you will live.”