By the renewing of our minds, we change to become more like what God wills for our life.
This is at least the third verse song in a row with titles such as "Do Not Be .." or "Don't Be ..". This looks like a pattern.
Even through one's own experience, one can grasp the idea that the world is not good in the end. Practical wisdom, learned through the "school of hard knocks", shows that is not good to be conformed to this world. It is not from ourselves that we change, but from outside our world.
Do Not Be Conformed (Ron 12:2) NHEB
2 (And)
do not be conformed
to this world,
but be transformed
by the renewing of your mind,
so that you may prove
what is the good,
well-pleasing, and perfect
will of God.
David Davis April 2021