Apostol § 108

Brethren, I beseech you by the mercies of God, that you present your bodies a living sacrifice, holy, acceptable unto God, which is your spiritual worship. And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God. For I say, through the grace given unto me, to everyone who is among you, not to think of himself more highly than he ought to think, but to think soberly, each according to the measure of faith which God has assigned him.