1 John 5

11 And the testimony is this, that God has given us eternal life, and this life is in His Son. 12 The one who has the Son has the life; the one who does not have the Son of God does not have the life.

This Is Written That You May Know

13 These things I have written to you who believe in the name of the Son of God, so that you may know that you have eternal life.