Therefore, having put away falsehood, let each one of you speak the truth with his neighbor, for we are members one of another. Be angry and do not sin; do not let the sun go down on your anger, and give no opportunity to the devil. Let the thief no longer steal, but rather let him labor, doing honest work with his own hands, so that he may have something to share with anyone in need. Let no corrupting talk come out of your mouths, but only such as is good for building up, as fits the occasion, that it may give grace to those who hear. And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption. Let all bitterness and wrath and anger and clamor and slander be put away from you, along with all malice. Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you. – Ephesians 4:25-32 ESV

What does it look like to “walk in a manner worthy of the calling to which you have been called” (Ephesians 4:1 ESV)? And what would it mean to “no longer walk as the Gentiles do” (Ephesians 4:17 ESV)? Paul doesn’t leave anything up to our imaginations. While at one time, before coming to know Christ, we had futile minds and a darkened understanding, all that has changed. We used to be alienated from God and were ignorant of godly things because we had hardened hearts. We were callous, sensual by nature and greedy for more and more impurity. That was our old self. But when we came to know Christ, we were given a new nature, a new self, with the capacity to renew and redeem our entire way of thinking. And the way we think has a tremendous impact on the way we live. Which is why Paul encouraged his readers to “put on thew new self, created in the likeness of God in true righteousness and holiness” (Ephesians 4:24 ESV). Then he described what that should look like in real life.

One of the first characteristics of our new life should be truth. Everything about our life outside of Christ was marked by falsehood and based on lies. Our view of God, if we had one, was false. Our perspective on sin and any need for salvation was flawed and influenced by the lies of Satan. We probably didn’t think we were that bad. Our view of our own sinfulness was relative, allowing us to see ourselves as somewhat better than others. But when we came to know Christ, we were suddenly exposed to the truth regarding our sin and the condemnation we deserved. We realized for the first time that any hope we had for restoration to a right relationship with God was possible only through Christ. We became aware that we were sinners in need of a Savior. We came to grips with the reality of God’s unapproachable holiness and our own unrighteousness. The magnitude of God’s incredible love as revealed through the death of His Son on the cross dawned on our darkened minds and opened our blind eyes to the truth of salvation by grace alone, through faith alone, in Christ alone.

As believers we are to put away falsehood and deceit. We have to constantly eliminate the false ideas and faulty precepts on which we formerly based our lives. Instead, we are to “speak the truth with his neighbor” (Ephesians 4:25 ESV). While lying was a natural part of our former lives, it is uncharacteristic and unacceptable in our new status as members of God’s family. We are to exhibit holiness and righteousness. For us, honesty isn’t just the best policy, it is the only one. While anger was a normal part of our pre-conversion experience, now we should view it as dangerous and destructive. While we can’t completely eliminate anger from our lives, we can learn to control it. Which is why Paul wrote (quoting from Psalm 4:4), “‘don’t sin by letting anger control you.’ Don’t let the sun go down while you are still angry, for anger gives a foothold to the devil” (Ephesians 4:26-27 ESV). Our old nature will try and justify our anger. It will want to defend it by labeling it as “righteous indignation.” But anger simply provides an entry point for the enemy. As believers, love is to be the primary characteristic of our lives. 

In His sermon on the mount, Jesus told those listening to His message:

You have heard that it was said, “You shall love your neighbor and hate your enemy.” But I say to you, Love your enemies and pray for those who persecute you, so that you may be sons of your Father who is in heaven. For he makes his sun rise on the evil and on the good, and sends rain on the just and on the unjust. For if you love those who love you, what reward do you have? Do not even the tax collectors do the same? And if you greet only your brothers, what more are you doing than others? Do not even the Gentiles do the same? You therefore must be perfect, as your heavenly Father is perfect. – Matthew 5:44-48 ESV

Salvation is not just about having our sins forgiven and our eternity secured. It is about life change. It includes our ongoing transformation through God’s divine process of sanctification. God doesn’t just free us from the penalty of sin, He liberates us from the power of sin in our lives, allowing us to live radically different lives right here, right now. As a result, the thief who comes to faith in Christ, is to no longer steal. He is to work. And rather than take from others, he is to share what he earns with those in need. His whole mindset about life is to change. As believers, our speech should reflect our new nature. Paul writes, “Don’t use foul or abusive language. Let everything you say be good and helpful, so that your words will be an encouragement to those who hear them” (Ephesians 4:29 NLT). Again, notice the change in perspective. It is other-oriented, rather than me-centered. Our words are to build up, not tear down.

As believers, our conduct can grieve the Holy Spirit. When we live like we used to live, according to our old nature, we are not allowing the Holy Spirit to direct our lives, and this brings Him great sorrow. When bitterness, rage, anger, harsh words, and slander mark our lives, it is evidence that we are not living in the power of the Holy Spirit. These things are evidences of our old nature. But when we exhibit kindness, tenderness and forgiveness to one another, it is proof that the Holy Spirit is at work in our lives, producing His fruit through us. We are walking in a manner worthy of the calling to which we have been called. We are living in unity. We are being renewed and putting on our new nature, created after the likeness of God in true righteousness and holiness.