We all live by faith in someone or something.

Everything that we are and do is a result of what we believe. Our behaviors are the tangible expression of our beliefs. It is by grace you have been saved through faith. . . .

A gospel-fluent community that is growing in faith in the gospel is evidenced by people confessing their sins to one another regularly. A gospel-fluent community that is growing in confidence that Jesus fully atoned for our sins extends grace and forgiveness to one another. It is by grace—the gift of God in Jesus—that you are saved from the consequences and control of sin. And it is through faith—belief in Jesus’s work on our behalf. Every sinful attitude, motive, thought, or action is a result of unbelief in God’s word and work.

Paul teaches in Romans 1:18–32 that we all, like Adam and Eve and all their descendants, have exchanged the truth of God for a lie and have worshiped the creation instead of the Creator. We put our faith in the things God has made or the things we can do instead of God. God gives us over to our wrong belief and lets it produce in us what all idolatry produces—sin, brokenness, perversion, and pain. He does this so that we will see the wretchedness of sin and turn back to him as the one who forgives our sin, cleanses us from unrighteousness, and heals our brokenness.

The gospel is not just the power of God to save, but also the revelation of God that we need to be saved and that the only one who can save us is Jesus. The Spirit’s job is to reveal to us our unbelief, grant us repentance, and lead us to know and believe in Jesus. That is the work we do. We turn from unbelief to belief in Jesus. Unbelief can take several forms: (1) we don’t believe because we lack the truth about God; (2) we believe lies about God; or (3) we fail to put our faith in what we know to be true of God.

First, many don’t know who God really is. They don’t know what he is like or what he has done for us. A person can’t believe in God if he or she is unaware of the truths about God. There is no salvation—no transformation—apart from knowing God. One of the reasons Jesus came—and one of the reasons why the gospel is such good news—was to reveal the truth about God and to bring us into relationship with him. In the gospel, we have the revelation of what God is like and what God has done. God is revealed through Jesus’s life, Jesus’s ministry, Jesus’s death, and Jesus’s resurrection. What is your God like? What do you believe about God? Growing in gospel fluency requires growing in our knowledge of God as he is revealed in and through Jesus Christ.

Second, in some cases, our unbelief involves believing lies about God. Satan deceived Adam and Eve into believing lies about God, and we regularly buy into his lies as well. We might know certain truths about God, but fail to believe those truths because we are deceived into believing lies. Jesus came to dispel the lies. Regularly, we hear Jesus say, “Truly, truly I say . . .” He is replacing the lies we believe with the truths of God. Not only does he proclaim those truths verbally, but he is also the ultimate example and display of those truths. Growing in gospel fluency requires regularly replacing lies we have believed with the truths of God revealed in Jesus. One of the reasons God sent his Spirit to us is to reveal the lies and help us believe the truth about God. I regularly invite God’s Spirit to do this in my life. You can too.

Third, we often say we believe something to be true about God, but our lives show that we don’t actually believe it. We know a truth we should believe, but in actuality, we don’t. For instance, we profess belief in a God who forgives our sins through faith in the death of Jesus, but we continue to believe we need to behave better in order to make up for what we’ve done. When we do this, we are living in unbelief in the gospel. The gospel is the power of God to save us not only because our sin of unbelief is forgiven through Jesus’s death on the cross, but also because in the gospel we come to know and believe the liberating truths of God revealed in Jesus Christ. And through believing those truths, the lies we’ve believed are dispelled and the truth sets us free to really live.

So what do you believe? The gospel won’t fluently come out of you to others unless it’s changed you first.

(Taken from Gospel Fluency by Jeff Vanderstelt, ©2017 Crossway.)

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