The document discusses three key threats to the survival of the Church of Christ: 1) Teaching false doctrines, as false teachers can lead people astray from the truth; 2) Worldliness, as engaging in sinful behaviors like adultery, drunkenness, and immodesty deprives one of spiritual blessings; 3) Failing to apply religious beliefs consistently throughout life, as one must be a Christian in both worship and daily living. The author argues that the Church must contend for the true faith, build upon Christ as its foundation, and live righteously in order to survive attacks from Satan.