Today in the United States, millions of men, women, and children are considered 'illegal aliens' under federal law. While the presence of these migrants runs against the law, many arrive in response to U.S. demand for cheap labor and stay to contribute to community life. This book asks where migrants stand within God's world and how authorities can govern immigration with Christian ethics. The author tracks the emergence of the concept of the illegal alien in federal U.S. law while exploring Christian ways of understanding belonging, government, and relationships with neighbors. This is a thought-provoking book that provides a fresh response to the difficult issue of illegal immigration in the United States through the context of Christian theology.