In Ephesians 4:15, Paul says we should speak the truth in love. In this context, truth has to do with the knowledge of the Son of God (v. 13) or Bible doctrine (v. 14). Your neighbors, coworkers, friends, and family members might not come to your church to listen to a preacher, but you can be their gospel friend by speaking a good word for Jesus in your backyard, in the lunchroom, or in an airplane. The gospel is so simple that even a child can explain it, and yet it is so deep that we will spend eternity trying to fathom it. At its heart, the gospel is the good news that God saves sinners through His Son.
Paul offers a brief sketch of the gospel in 1 Corinthians 15:3–5a: “For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; and that he was buried, and that he rose again the third day according to the scriptures: and that he was seen.” With that good news comes Christ’s call to repent and believe the gospel (Mark 1:15). Be confident that the gospel is the power of God for salvation. Behind its words stand the infinite power of God and the finished work of Christ. When you speak the gospel, you are unleashing a lion! It is God’s instrument on earth to advance His kingdom. So seek first His kingdom by being a public witness for Christ.
Beauty and Glory of Christ’s Bride
Joel R. Beeke