¹ I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship. ² 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 12:1-2 ESV

Here Paul makes a transition from talking about God’s relationship with the Jews in general to the conduct of believers in particular. He has been addressing the issue of justification or how to be made right with God, based on the grace of God and not the efforts of man. Whether Jew or Gentile, every man and woman is justified before God by faith in Christ alone; human effort has nothing to do with it. But Paul does not want to leave his readers with the false impression that behavior is no longer a part of the equation. The salvation God offers through the death of His Son should result in a dramatic change in how we live. Paul has already addressed this on two different occasions.

Do not let any part of your body become an instrument of evil to serve sin. Instead, give yourselves completely to God, for you were dead, but now you have new life. So use your whole body as an instrument to do what is right for the glory of God. – Romans 6:13 NLT

Previously, you let yourselves be slaves to impurity and lawlessness, which led ever deeper into sin. Now you must give yourselves to be slaves to righteous living so that you will become holy. – Romans 6:19 NLT

In light of all that God has done for us, our response should reflect our deep gratitude. In Chapter 5, Paul wrote, “Therefore, since we have been made right in God’s sight by faith, we have peace with God because of what Jesus Christ our Lord has done for us” (Romans 5:1 NLT). Because of the sacrifice that Christ made on our behalf, giving Himself as our sin substitute on the cross, we have been restored to a right relationship with God, and He alone made it all possible. He sent His Son to die on our behalf, sacrificing what was most precious to Him so that we could be given new life and a restored relationship with Him.

As Paul pointed out in Chapter 8, the benefits of this gracious gift of God are beyond measure.

So now there is no condemnation for those who belong to Christ Jesus. And because you belong to him, the power of the life-giving Spirit has freed you from the power of sin that leads to death. – Romans 8:1-2 NLT

Those who place their faith in Jesus no longer live under the Damocles sword of sin’s condemnation. With the threat of eternal separation from God eliminated, it no longer serves as our motivation for right behavior. Striving to live righteously to earn God’s favor is a thing of the past. Now, any attempts we make to live in a manner that is pleasing to God are done in the power of the Holy Spirit, not the flesh. We pursue righteousness out of thankfulness for all that God has done for us, not in some vain attempt to buy our way into His good graces.

Our desire to live for God is no longer motivated by fear, nor is it based on a hope that what we do can earn enough points with God to make Him accept us. In this lifetime, our behavior is not about earning God’s grace; it is about living according to the grace He has extended to us through the death of His Son. He has given us new life and is transforming us into new creations. We are already His children, adopted into His family and heirs of all that is His. We don’t have to make God love us; He already does, and the gift of His Son was the greatest expression of His love.

But God showed his great love for us by sending Christ to die for us while we were still sinners. – Romans 5:8 NLT

So Paul urges us to present our bodies as “living sacrifices.” Our death is not required because the death penalty for our sins has already been paid in full. Our motivation for offering ourselves to God is His unmerited mercy and grace. Unlike most sacrifices, in which the one making the sacrifice seeks mercy from God, we are offering ourselves because of the mercy we have already received from God. God has shown us mercy by delivering us from condemnation. Rather than giving us what we deserved, He showered us with His grace, and we should be eternally grateful.

So what does our “living sacrifice” look like? How are we to conduct ourselves in this world as a result of all that God has done for us? Paul gives us a negative and a positive aspect to our behavior. First of all, we are NOT to be conformed to this world. The Greek word, syschēmatizō means “to conform one’s self (i.e. one’s mind and character) to another’s pattern, (fashion one’s self according to)” (Outline of Biblical Usage).

We are not to pattern ourselves after the ways of this world. When Paul refers to the “world,” he is speaking of the pervasive mindset of our culture that seeks to exclude God. It is a man-centered way of thinking that diminishes God and deifies man. Ever since the fall, humanity has attempted to make man the center of the universe. Our relentless pursuit of autonomy drives us to satisfy our self-centered passions.

But as followers of Christ, we are not to follow the example of this world. We have been separated from this world by God. As Jesus said, we are to live in it, but not be a part of it.

“The world would love you as one of its own if you belonged to it, but you are no longer part of the world. I chose you to come out of the world, so it hates you.” – John 15:19 NLT

We are to live separate and distinct lives. But how? Paul gives us a critical and non-negotiable requirement for pulling off this seemingly impossible behavioral transformation. It entails the “renewal” of our minds. We are to undergo a radical makeover of the way we think. When Paul spoke of renewal, he used the Greek word anakainōsis, which refers to “a renewal, renovation, complete change for the better” (Outline of Biblical Usage). It begins in our minds, the center of our thoughts. We must constantly remind ourselves of all that God has done for us. Not only was He responsible for our salvation, but He is the one who makes possible our sanctification. We must constantly consider the fact that our transformation into the likeness of His Son is His doing, not ours.

By focusing on the divine nature of our sanctification, we can begin to eliminate our self-help mentality and lean on the assistance of the indwelling Holy Spirit. It is as we live in constant dependence upon God and His transforming power that we begin to grasp His will for our lives.

As Paul so succinctly put it, “God’s will is for you to be holy…” (1 Thessalonians 4:3 NLT). That is His overarching objective for our lives. Nothing more, nothing less. And when we present ourselves as living sacrifices to God, we tell Him that we want what He wants. We express our desire to be used by Him, however He sees fit, for our good and His glory.