I find this moving every time I'm reminded of it. In A.D. 404 John Chrysostom, the early church father, was brought in before the Roman emperor. The emperor threatened him with banishment if he remained a Christian.
Chrysostom responded, 'You cannot banish me, for this world is my Father’s house.'
'But I will kill you,' said the emperor.
'No, you cannot, for my life is hid with Christ in God,' said Chrysostom.
'I will take away your treasures.'
'No, you cannot, for my treasure is in heaven and my heart is there.'
'But I will drive you away from your friends and you will have no one left.'
'No, you cannot, for I have a friend in heaven from whom you cannot separate me. I defy you, for there is nothing you can do to harm me.'