Parallel
1 John 5:13
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard 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.
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 (note: BYZ and TR include and that you may believe in the name of the Son of God.).