²⁵ Therefore, having put away falsehood, let each one of you speak the truth with his neighbor, for we are members one of another. ²⁶ Be angry and do not sin; do not let the sun go down on your anger, ²⁷ and give no opportunity to the devil. ²⁸ 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. ²⁹ 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. ³⁰ And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption. ³¹ Let all bitterness and wrath and anger and clamor and slander be put away from you, along with all malice. ³² 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.

Before coming to know Christ, we had futile minds and a darkened understanding, but 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 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. That is why Paul encouraged his readers to “put on the 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 truthfulness. Everything about our life prior to coming to 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. Our perspective of reality was wrong, and our perception of ourselves was faulty, causing us to believe we were good rather than 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 of being restored to a right relationship with God was only possible through Christ. We became aware that we were sinners in need of a Savior and 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, each of us is to “speak the truth with his neighbor” (Ephesians 4:25 ESV). While lying was a natural part of our former lives, it is uncharacteristic of 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 nature, now we should view it as dangerous and destructive. We can’t completely eliminate anger in this life, but with the help of the Holy Spirit, we can learn to control it. Which is why Paul quoted a Psalm of David.

Be angry, and do not sin; ponder in your own hearts on your beds, and be silent. – Psalm 4:4 ESV

And Paul added a reminder that unresolved anger is how the enemy gets a foothold in our lives. 

…and give no opportunity to the devil. – Ephesians 4;27 ESV

Our old nature will try to justify our anger and 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 gave His audience a primer on love, hate, and anger.

“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 its power over our lives, allowing us to live radically different lives in the here and now, not just the hereafter. As a result, the thief who comes to faith in Christ is to stop stealing and work for a living. Rather than taking 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 self-obsessed. Our words are to build up, not tear down; they should comfort and encourage as we speak the truth in love. 

As believers, our conduct can grieve the Holy Spirit. When we live as we used to, according to our old nature, we reject the Holy Spirit’s direction for 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 are what Paul calls “the works of the flesh” (Galatians 5:19 ESV). They are the fruit of our old nature.

When you follow the desires of your sinful nature, the results are very clear: sexual immorality, impurity, lustful pleasures, idolatry, sorcery, hostility, quarreling, jealousy, outbursts of anger, selfish ambition, dissension, division, envy, drunkenness, wild parties, and other sins like these. – Galatians 5:19-21 NLT

But when we exhibit kindness, tenderness, and forgiveness to one another, it proves that the Holy Spirit is at work in our lives, producing His fruit through us. It gives evidence that 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, for the good of the body of Christ and the glory of God.