You know, I think that little test displays a lot of wisdom. Kissinger knew that a long time of living in a foreign land can diminish your loyalties to your home country. You can get sucked into the culture of the place you are living and pick up its attitudes, prejudices, morals, and ways as you make contacts and friends among the local people. And all of that diminishes your ability to remember which country it is that you are supposed to represent. And all too often, it happens that an ambassador begins to represent his host country to his home country. So an ambassador can’t ever become confused about which country is his.
And you know what? A lot of Christians have the same tendency. The longer we live in a world that’s not our home, the easier it is "go native" and begin to reflect the attitudes, morals, and ways of the place we are living in and to forget which country is our home.
…they admitted that they were aliens and strangers on earth. People who say such things show that they are looking for a country of their own. If they had been thinking of the country they had left, they would have had opportunity to return. Instead, they were longing for a better countrya heavenly one. Therefore God is not ashamed to be called their God, for he has prepared a city for them. – Hebrews 11:13c-16