1. According to verse 2, what is the role of Jesus Christ in relation to our sins?
  2. How do we know that we truly know God, according to verse 3?
  3. What does it mean to keep God's commandments, and why is it important?
  4. What does it mean to have the love of God perfected in us, as mentioned in verse 5?
  5. In verse 6, what does it mean to walk as Jesus walked?
  6. What is the old commandment that John refers to in verse 7, and how is it connected to the beginning?
  7. What is the new commandment that John mentions in verse 8, and why is it true in both Jesus and us?
  8. How does hating one's brother relate to walking in darkness, as described in verse 9?
  9. What is the significance of loving one's brother in relation to abiding in the light, as stated in verse 10?
  10. How does hatred toward others impact our spiritual understanding, as mentioned in verse 11?
  11. Why does John address his audience as "little children," "fathers," and "young men," and what is the significance of each group knowing God in different ways?
  12. What does it mean to love the world, and why should we not love it, according to verse 15?
  13. What are the characteristics of the world that we should avoid, as mentioned in verse 16?
  14. How does doing the will of God relate to abiding forever, as stated in verse 17?
  15. What signs indicate that it is the last time, and how does the presence of antichrists fit into this context?
  16. How can we discern true followers of Christ from those who only appear to be, according to verses 19-20?
  17. What is the significance of the anointing we have received from the Holy One, and how does it relate to our understanding of truth, as mentioned in verses 20 and 27?
  18. What is the promise that John refers to in verse 25, and how does it relate to abiding in Christ?
  19. How can we have confidence and not be ashamed when Jesus appears, as mentioned in verse 28?
  20. What is the connection between doing righteousness and being born of God, as stated in verse 29?

These questions can help explore the themes of sin, advocacy, obedience, love, light and darkness, knowing God, the last days, discernment, the anointing of the Holy Spirit, and abiding in Christ.