1 John 5:9-13

The most important issue we must settle in this life is our eternal destiny. Throughout history, local churches have been composed of both believers and unbelievers, and it’s often difficult to tell the difference. That’s why John wrote his first letter. He wanted to assure the true Christians of their salvation and warn those who professed belief but lacked saving faith.

John gives a fourfold test describing the beliefs and practices of genuine believers:

Right understanding of Christ and salvation (1 John 2:18-27). To be saved, we must have the true gospel and the only Savior, as described in God’s Word.
Right attitude toward sin (1 John 1:5-10, 1 John 2:1-2). True believers hate their sin and are quick to confess and turn from it.
Right practice of obedience (1 John 2:3-6). God’s commands are not burdensome to those who belong to Christ. Although they fail at times, the overall direction of their life is one of obedience.
Right relationship with God’s people (1 John 2:7-11). Christ produces within His true followers a love for fellow believers, demonstrated by a desire to be with them.
If you have doubts about your salvation, reading the book of 1 John will help you settle the issue.