Anyone with the slightest familiarity with history knows how frequently and chillingly these prophecies have been fulfilled. The fact that many of us in the West have for so long been largely exempt from the worst features of such persecution has let us lower our guard—even Christians may think that a hassle-free life is something that society owes us. But as the Judeo-Christian heritage of the West weakens, we may one day be caught up in realities that missions specialists know but that the rest of us sometimes ignore: the last century and a half have seen more converts, and more martyrs, than the first eighteen centuries combined.