1 John 2:1

2:1 (My little children, I am writing these things to you so that you may not sin.) But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous One,

1 John 2:21

2:21 I have not written to you that you do not know the truth, but that you do know it, and that no lie is of the truth.

1 John 5:13

Assurance of Eternal Life

5:13 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.