It is easy to say we ought to, “love one another,” but not always so easy to do. You cannot believe in Jesus without loving others. John wrote 1 John to build up the early followers of Jesus not beat them up. Loving our brothers and sisters in Christ does not cause one to enter into spiritual life with Jesus but it is the evidence of a life that has been transferred from darkness into light. John is very clear in 1 John 3:11-24 that the one who remains unloving remains in death. Life in Christ is evidenced by a love for others. The love from Christ will always move toward action.