Apostasy, from the Greek word apostasia ἀποστασία, means “a total desertion of, or departure from, one’s faith, principles, or party”; in theology, “a total abandonment of the Christian faith” (The Century Dictionary, vol. I, p. 265). It is a turning away from God, a rejection of core doctrine, and a separation from the people of God. The apostles addressed apostasy in the early church, and the battle against apostasy has continued through the years. Today, sadly, some still choose to totally abandon their Christian faith.