Peter knew of apostasy spreading and would not sit idly by and watch it pollute the church. He gives a history and prophecy lesson to refute truth deniers, and to bolster truth defenders.
Believers have responsibilities toward their brother and sister ‘neighbors’ within the body of Christ. What are their responsibilities to their neighbors outside the body?
Amid external and internal opposition to the Jerusalem wall reconstruction, Nehemiah exhorted his fellow Jews to not fear the situation, remember the God on their side, and fight if necessary.