These letters from the Apostle John, and from Jude, Jesus' brother, address the love of God, encourage believers, and warn of false teachers within the church. 1 John is a great letter that seeks to clarify and solidify believers' faith in Christ! In it, John went into great detail about the love of God! John's goal was to insure that all believers know that they know God! 2 John, 3 John, and Jude encourage believers while warning of deceivers and evil workers who abound in these last days. The solutions to dealing with such evil deceptions are to look to God and to build up one's faith as John explained in 1 John! These are valuable letters for all Christians who are active servants of God and who await the soon return of the Lord Jesus Christ!