That, discerning their own faith, they might be in no doubt concerning their title to eternal life, and might be thereby encouraged to persevere in the same faith.
Related Commentaries of 1 John 5:13
1 John 5:13
13 These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.