Many Christians struggle with doubts about their salvation. As they look at their failures, they question whether they’re truly saved. The apostle John wrote his first epistle to assure believers of their eternal security. Throughout the book, he gives three tests by which professing believers can evaluate themselves to see if they are truly in the faith.
1. The Word Test. Genuine Christians believe what Scripture says about Christ—that He is God’s Son, who came in the flesh to die for mankind’s sins.
2. The Witness Test. The Holy Spirit indwells true believers. They experience His transforming work, and He gives them a deep, abiding conviction that they belong to Christ.
3. The Walk Test. Christ’s life flows through His followers and will be evident in their words, attitudes, and actions. The sins they once loved are now repulsive to them, and obedience to Christ is the new direction of their life.
While we can’t be 100 percent certain about the authenticity of anyone else’s faith (Matt. 7:21), God doesn’t want His true children wavering in uncertainty about their own. That’s why John’s first epistle says, “These things I have written to you who believe in the name of the Son of God, so that you may know that you have eternal life” (1 John 5:13, emphasis added).