There is paradox in the Christian understanding of what it means to be free.
No single word resonates with Americans and millions of others quite like freedom. A television commercial announces that buying a certain automobile or flying with a certain airline will make you "free." People celebrate their country's independence with songs of "freedom" on their lips and ringing in their ears. Politicians, businesspeople, advertisers, salesmen, military leaders and recruiters—all know how to use "freedom" to attract attention and draw interest. Few words are so common while carrying so much weight.
The word is also found throughout Scripture and Christian tradition. Everyone raised in Sunday school knows "the truth will set you free" (John 8:32) and "[i]t is for freedom that Christ has set us free" (Gal. 5:1). Freedom is not just an American or humanitarian theme; it's also a gospel theme.