GOD'S WORD® Translation
I've written this to those who believe in the Son of God so that they will know that they have eternal life.

American Standard Version
These things have I written unto you, that ye may know that ye have eternal life, even unto you that believe on the name of the Son of God.

Berean Study Bible
I have written these things to you who believe in the name of the Son of God, so that you may know that you have eternal life.

Douay-Rheims Bible
These things I write to you, that you may know that you have eternal life, you who believe in the name of the Son of God.

English Revised Version
These things have I written unto you, that ye may know that ye have eternal life, even unto you that believe on the name of the Son of God.

King James Bible
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.

World English Bible
These things I have written to you who believe in the name of the Son of God, that you may know that you have eternal life, and that you may continue to believe in the name of the Son of God.

Young's Literal Translation
These things I did write to you who are believing in the name of the Son of God, that ye may know that life ye have age-during, and that ye may believe in the name of the Son of God.

1 John 5:13 Additional Translations ...