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.
2 Cor 4:16
Therefore we do not lose heart. Even though our outward man is perishing, yet the inward man is being renewed day by day.
13 For you, brethren, have been called to liberty; only do not use liberty as an opportunity for the flesh, but through love serve one another. 14 For all the law is fulfilled in one word, even in this: "You shall love your neighbor as yourself."
and be renewed in the spirit of your mind,
not by works of righteousness which we have done, but according to His mercy He saved us, through the washing of regeneration and renewing of the Holy Spirit,