Paul describes his ministry, comforting and encouraging friends who care about him, protected him during the great riot, and who are no doubt dismayed at his imprisonment. Verses 7-9 are beautiful summations of what has been taught so far. Verses 10-13 contain some deeply comforting conclusions drawn from those previous truths – that we have the inside track, even past what angels (& demons) know about salvation; that God planned for us to be bold in our access to Him; that we do not lose heart in the face of troubles.