1 John 3:23

3:23 Now this is his commandment: that we believe in the name of his Son Jesus Christ and love one another, just as he gave us the commandment.

1 John 4:1

Testing the Spirits

4:1 Dear friends, do not believe every spirit, but test the spirits to determine if they are from God, because many false prophets have gone out into the world.

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.