King James Version
And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.English Standard Version
Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect.Catholic Public Domain Version
And do not choose to be conformed to this age, but instead choose to be reformed in the newness of your mind, so that you may demonstrate what is the will of God: what is good, and what is well-pleasing, and what is perfect