When we read Scripture, we find that our questions and concerns are addressed as if it was  written to us. It was not, but all of it was written for us. The sufficiency of Scripture means that everything we need for life and godliness is found in or addressed in principle by the Bible. These are our perennial questions: “Who is God?”; “Who are my people?”; “How should I live?” In this passage John shows the three threads of assurance—doctrine, love, and obedience—are an unbreakable cord that overcomes the world.