The Christadelphians claim to base their beliefs entirely on the Bible and do not agree to believe or accept other texts inspired by God. They guarantee that God is the creator of all things and the father of the religious. They also consider that God the father and Jesus Christ are not one person; but two completely different individuals. They understand that the Holy Spirit is not a person, but the power of God used in creation and to lead people to salvation.
They believe that people are separated from God because of their sins, but they can be reconciled to him by becoming disciples of Christ. There is no cream that comes out of the physical death of Christ, but by following his example. People are not saved for the simple fact that Christ died for their sins, but because they "die with Christ" daily to sin within their humanity. They believe that a faith without works is dead and unsaved, but it is one based on scriptural reasoning. Salvation for them is not achieved simply by acceding to a doctrine, but by real knowledge of what God wants from his children.
The Christadelphians resist certain types of doctrines accepted by many other Christians, being necessary to perceive:
- The immortality of the soul.
- A kingdom of God in heaven, since according to them the Earth will be transformed, where the righteous live forever.
- A hell of fire, the punishment for sin for them in eternal death, The pre-existence of Jesus Christ.
- The infant baptism.
- The person of the Holy Spirit and the possession of the gifts of the Holy Spirit, among others.
Something that makes them unique, among the rest of the Christian groups is the fact that they believe that the words holy and the devil are the common words used in the languages that they mean; the adversary and the slanderer, and that its meaning depends on the context; but that they are never the personal titles or names of any fallen angel, since there never existed any rebellion of evil in the heavens as the rest of the Christian denominations believe. For cristadelphians angels, by their spiritual nature, are perfect and cannot sin. They explain that the New Testament under these expressions personifies in most of the text the natural tendency to sin. This term (cristadelphians) in the old testamentit was used to refer to specific people, political systems or individuals in opposition or conflict.