What does Romans 12:2 mean?

Paul is urging Christians to respond to God's mercy, His forgiveness of our sin, and His inclusion of us in His family. The appropriate reaction would be offering to Him our entire lives as a form of living, breathing sacrifice.

Next, Paul writes that we must no longer be conformed to the world. The word "world" is often used in the New Testament to refer to the "world system," or the way that every human being lives by default. John described this worldly way of living as "the desires of the flesh and the desires of the eyes and pride of life" (1 John 2:16). By instinct, all of us chase those things in pursuit of happiness and meaning.

Paul tells us to abandon the chase for pleasure, possessions, and status—to stop living like everyone else. Instead, he urges us to be transformed from the inside out. Specifically, he writes that we must be changed in how we think, to have our minds renewed so that we can begin to understand God's will for our lives.

God may continue to provide us with pleasure, possessions, and status in various forms, but he urges us to learn how to look at life with a new question: What does God want for me? What is truly a good, acceptable, and perfect use of my life for His purposes and not just for my own?