(1) Christianity teaches the inspiration, sufficiency, and supremacy of Holy Scripture.
“All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work.” (2 Tim 3:16-17)
Christianity teaches that the Bible is the only trustworthy rule of faith and practice in religion, that God requires nothing to be believed that is not in this Word; and that nothing is right which contradicts it.
Christianity always maintained that, however imperfectly we may understand it, the Bible is meant to be the only standard of life and doctrine.
(2) Christianity teaches the sinfulness, guilt and corruption of human nature.
“All have sinned and fall short of the glory of God.” (Rom 3:23)
Christianity teaches that people are born in sin, deserve God’s wrath and condemnation, and are naturally inclined to do evil. It doesn’t teach that men and women can become good whenever they please, and can make their own peace with God.
Christianity teaches that people need Divine forgiveness and atonement for sins, a new birth or conversion, and an entire change of heart. (Rom 3:23-24)
(3) Christianity teaches that Jesus Christ is the center and foundation of faith and hope.
“Christ Jesus himself is the chief cornerstone. In him the whole building is joined together and rises to become a holy temple in the Lord” (Eph 2:20)
Christianity teaches that Christ is the Divine Mediator between God and men, the only source of peace of conscience, and the root of all spiritual life.
The main teachings about Christ are the atonement, and the complete redemption from guilt and condemnation for sin He made by His death on the cross, His victory over the grave by His resurrection, His active life of intercession at God’s right hand, and the absolute necessity of simple faith in Him. In short, Christ is the center of Christian theology. (Luk 24:25-27)
(4) Christianity has always taught Christians live by the Spirit.
“Live by the Spirit, and you will not gratify the desires of the sinful nature.” (Gal 5:16)
Christianity teaches that we must be born of the Spirit, led by the Spirit, sanctified by the Spirit, feel the operations of the Spirit, and that a close walk with God in the path of His commandments, a life of holiness, love, self-denial, purity, and zeal to do good, are the only satisfactory works of the Holy Spirit. (Gal 5:22-23)
Christianity, in the days of the Apostles, “turned the world upside down”! (Acts 17:6) It emptied the idol temples of their worshipers, routed the Greek and Roman philosophers, and forced heathen writers to confess that the followers of the “new superstition,” as they called it, were people who loved one another, and lived very pure and holy lives!
True faith is more than holding theological positions — it’s living, burning and active. It produces works of love, it purifies the heart, and overcomes the world.
– J. C. Ryle