1 John 2:25-25: Abide in Truth and Happiness
1 John 2:24-25: Let what you heard from the beginning abide in you. If what you heard from the beginning abides in you, then you too will abide in the Son and in the Father. And this is the promise that he made to us—eternal life. 
Based on the title, you might be cringing in fear that this is about to be a health and wealth devotional. But John’s message does not allow us to go that route. In fact, John’s message is much better than self-confidence, self-approval, and self-sufficiency. These verses remind Christians of the joys they will have from remaining faithful to the Gospel John taught them by the power of the Holy Spirit.  By continuing in a biblical understanding of the Gospel, believers have fellowship with the Triune God and enjoy “real happiness.”  This “real happiness” is not infatuation with whimsical desires, but rests on the tested, true, and tried Word of God that can weather any storm. 
This is why good doctrine is so important.  When we are careless in understanding Scripture and get quickly attached to truths that seem biblical without examining them we rob ourselves of real happiness.  Are you struggling to understand the difficulties in your life? Are you itching for doctrines that promote yourself rather than the Gospel? Examine what you believe against the Bible so that lasting happiness can be yours. This happiness may not make you feel the way you think you should feel, but will free you from deception. Will you abide in truth and happiness that comes from God’s Word, pointing to Christ’s redemptive work on every page, or will lies consume you?
This blog was written by Seth Dunn
 Calvin, Commentaries on the Catholic Epistles, 198-199. See also Timothy Keller’s “Our Identity: The Christian Alternative to Late Modernity's Story” at https://www.youtube.com/watch?v=Ehw87PqTwKw.