Put on the New
Eph 4:23,24 to be made new in the attitude of your minds; and to put on the new self, created to be like God in true righteousness and holiness.
The first thing to be renew is the attitude of mind. "Do not conform any longer to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is— his good, pleasing and perfect will." Rom 12:2 "bringing every thought into captivity to the obedience of Christ" 2Cor 10:5
So "put on the new self, which is being renewed in knowledge in the image of its Creator." Col 3:10