The Church is the Body of Christ. The gates of hell shall not prevail against it. Just as Christ had to suffer his Gethsemane, so must His Church. And just as Christ rose, so shall His Church.
“The Church” cannot be legitimately defined as the Catholic Church. The true “Body of Christ” can only be defined as those who have truly been “born-again,” that is, supernaturally transformed by the power of the Holy Spirit through Jesus Christ. Herein likes the danger of false teachings and heresies. Leaven corrupts the truth, therefore preventing men from entering the kingdom of God via the traditions and commandments of men rather than sola-scriptura.