who in time past were no people, but now are God's people, who had not obtained mercy, but now have obtained mercy.

 These words give us two great truths about the Christian. (a) There is a real sense in which he is a stranger in the world; and because of that he cannot accept the world's laws and ways and standards. Others may accept them; but the Christian is a citizen of the Kingdom of God and it is by the laws of that Kingdom that he must direct his life. He must take his full share of responsibility for living upon earth, but his citizenship is in heaven and the laws of heaven are paramount for him. (b) The Christian is not a permanent resident upon earth; he is on the way to the country which is beyond. He must therefore, do nothing which would keep him from reaching his ultimate goal. He must never become so entangled in the world that he cannot escape from its grip; he must never so soil himself as to be unfit to enter the presence of the holy God to whom he is going. 