Let the word of Christ dwell in you richly in all wisdom, teaching and admonishing one another in psalms and hymns and spiritual songs, singing with grace in your hearts to the Lord.
I have written to you, fathers, because you have known Him who is from the beginning. I have written to you, young men, because you are strong, and the word of God lives in you, and you have overcome the evil one.
Whoever believes in the Son of God has this witness in himself. Whoever does not believe God has made Him out to be a liar, because he does not believe the testimony that God gave about His Son.