We had better begin by defining our terms. 'What is meant by Christendom, and how does Christendom differ from Christianity?
Christendom stands for those parts of the world where Christianity is the professed religion in contrast to heathen lands. In that profession there is a mixture of good and evil. In it is found much reality alongside of a vast amount, of insincere profession with no reality behind' it. The Word of God may be ministered in all its purity on the one hand, and that same Word of God neutralized on the other by traditions, superstitions, ritualistic practices, and doctrines far removed from the Word of God.
Christianity stands for pure Christian doctrine and practice. No person can have part in Christianity save those, who have sincerely accepted the Lord Jesus as a personal Savior, and who are indwelt by the Spirit of God. It represents Christ's building, which is on the rock foundation of the confession of His name as " the Son of the living God." Against this building the' Gates of Hades shall not prevail. Upon this rock foundation every true believer is built as an integral part of the Church of God.