Romans 12:1

1 I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship.

“Christ says, ‘Give me All. I don’t want so much of your time and so much of your money and so much of your work: I want You. I have not come to torment your
natural self, but to kill it. No half-measures are any good. I don’t want to cut off a branch here and a branch there, I want to have the whole tree down. Hand over the
whole natural self, all the desires which you think innocent as well as the ones you think wicked—the whole outfit. I will give you a new self instead. In fact, I will give you
myself: my own will shall become yours.’”

C.S. Lewis, Mere Christianity

Romans 12:2

2Do 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.