Romans 12:1-2

I beseech you therefore, brethren,
by the mercies of God,
that ye present your bodies a living sacrifice, 
holy, acceptable unto God, which is your reasonable service.  

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.