The biblical book of 2 Timothy is a letter written by the Apostle Paul to his younger protege and fellow missionary, Timothy. It is one of the pastoral epistles, along with 1 Timothy and Titus, which were written to provide guidance and instruction to church leaders.

In 2 Timothy, Paul encourages Timothy to remain steadfast in his faith and to continue preaching the gospel, even in the face of persecution and opposition. He reminds Timothy of the importance of sound doctrine and urges him to avoid false teachers who might lead him astray.

Paul also shares some personal details about his own situation, including his impending death and his hope for a heavenly reward. He encourages Timothy to be strong and courageous, and to entrust the gospel message to faithful men who will be able to pass it on to future generations.

Overall, 2 Timothy emphasizes the importance of perseverance, faithfulness, and doctrinal purity in the Christian life and ministry.