In 2 Peter 3, the apostle Peter addresses the doubts and concerns of believers regarding the second coming of Jesus Christ. He begins by reminding them of the prophecies given by the prophets and the teachings of the apostles, emphasizing that scoffers will come in the last days, mocking the promise of Christ's return.
Peter assures the believers that the delay in Christ's coming is not a sign of God's slackness or forgetfulness, but rather a demonstration of His patience and desire for all people to repent and be saved. He explains that just as God once destroyed the world by water during the time of Noah, He will one day destroy it by fire, bringing judgment upon the ungodly.
Peter encourages the believers to live holy lives, knowing that the day of the Lord will come unexpectedly, like a thief in the night. He reminds them of the new heavens and new earth that God has promised, where righteousness will dwell.
In conclusion, Peter urges the believers to be diligent in their faith, growing in the grace and knowledge of Jesus Christ. He warns them about false teachers and encourages them to stand firm in the truth of the Gospel.