Knowing that his time was short and these churches faced immediate danger, Peter called upon the readers to refresh their memories and stimulate their thinking so that they would remember his teaching. He challenged the believers to become more mature in their faith by adding to it specific Christians virtues, thereby becoming effective and productive in their knowledge of Jesus Christ.
The Old and New Testament writers were set forth as their authority for their faith. Peter desired they become strong in their faith to withstand the false teachers that had crept in and adversely affected the churches. In his denunciation of them, he described their conduct, their condemnation, and their characteristics, and also that they ridiculed the Lord's Second Coming.
For the Christians, Peter taught that the Second Coming is the incentive for holy living. After a final warning, Peter again encouraged them to grow in the grace and knowledge of their Lord and Savior Jesus Christ. He concluded with a word of praise to his Lord and Savior.