“Do 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.” (Romans 12:2)
“Do not be conformed” and “be transformed” stand in opposition of each other. Either your mind is being conformed, or it is being transformed. Either your mind is becoming like the world, or becoming like Christ.
Are your thoughts on things that are temporal or eternal? Do you love the things that this world loves, or the things that Christ loves?
We are given the imperative to renew our minds. So then, how do you renew your mind?
God in His grace has give us His written word to hear, to read, to meditate on, and to pray over. It is in these ways that the Holy Spirit sanctifies us and changes us. (John 17:17)
Knowing the scriptures are sufficient in themselves to make the man of God complete, let us pursue knowing His word by spending time in His word.
More specifically, we are to fill our mind with whatever is true, honorable, just, pure, lovely, commendable, of excellence, and worthy of praise. (Philippians 4:8)
These things are made known to us through the entirety of scripture. So as Paul exhorts the church in Philippi, so we too are to think about these things.