The Apostle John wrote to assure believers they truly did come to know Christ. He states how their lives will display the proof to dispel the doubts.

Simultaneously, the lack of these proofs affirms the reason for the doubt many have about being saved despite their claims to know Christ.

If you discover your life your has these proofs, rejoice that you belong to Christ! If you lack these proofs, not in proclamation but in application, then transfer your trust to Jesus and come into the light!