Although more could be said the Statement of Faith of the Baptist Churches of NSW is a good bedrock starting point to understand what Christians believe set out in a logical way.
The Nature and Unity of the Godhead
There is one God Who is eternal personal Spirit. He is infinite in power, wisdom, holiness and love. He is triune in essential being and revealed to us as Father, Son and Holy Spirit.
The Deity and Humanity of Christ
Jesus Christ as the second Person of the Godhead is eternally one with God the Father of Whose person and glory He is the accurate expression. To become man He was conceived of the Holy Spirit and born of the virgin Mary, truly God and truly man.
The Holy Spirit
The Holy Spirit as the third Person of the Trinity is eternally one with the Father and the Son yet He is sent by Them to achieve the Divine purpose in the world and in the Church.
The Divine Inspiration of the Scriptures
The Scriptures, consisting of the sixty-six books of the Old and New Testaments, are the infallible Word of God. They were written by holy men of God inspired by the Holy Spirit and have supreme authority in all matters of faith and conduct.
The Sinfulness of Man
Man was made in the image of God and for fellowship with Him. By transgression of God's command he fell from fellowship with God and his nature was corrupted. As a consequence, all men are spiritually dead under Satan’s dominion and control and subject to God's wrath and condemnation. Therefore, apart from God's grace, man is helpless and hopeless.
Christ's Atonement for the Sin of Man
In order to redeem mankind from the guilt, penalty and power of sin, Jesus Christ became man and died a sacrificial death as our representative substitute. By His resurrection, God's acceptance of His atoning death was demonstrated. This atonement is sufficient for the whole world but effective only in those who receive it. The sinner is justified and reconciled to God, not through any personal merit but solely on the basis of God's gracious gift of salvation in Jesus Christ received through faith.
The Work of the Holy Spirit in Salvation
The ministry of the Holy Spirit is necessary for the acceptance of God's provision of salvation. The Holy Spirit convinces sinners of their sinfulness, leads them to personal faith in Jesus Christ as Lord and Saviour and so brings them to spiritual birth as God's children and to fellowship in Christ. Working within the life of believers the Holy Spirit makes real the presence of Christ, witnesses to their relationship with God, leads into all truth, bestows gifts for effective service and produce graces for holy living.
The Church is the body of people whom God has separated from the world through faith in Jesus Christ as their Lord and Saviour. All regenerate persons are members of the universal Church of God which takes local form wherever groups of believers unite for worship, fellowship and service in accordance with scriptural sacrifices and sent into the world to be witnesses. The Church recognises such by ordaining pastors, commissioning missionaries, appointing deacons and other leaders, following New Testament practice.
The Baptism of Believers only by Immersion
Baptism is an ordinance of the Lord Jesus Christ. It is a public declaration of a person's faith in Jesus Christ as Lord and Saviour. In accordance with New Testament Scripture it should be administered only by total immersion which symbolises the believer's identification with Christ in death, burial and resurrection, the remission of sins and the believer's dedication of himself to God to live and walk in newness of life.
The Lord's Supper is an ordinance of the Lord Jesus Christ instituted by Him to be celebrated with the elements of bread and wine by believers in Christ until the end of the age. It commemorates and declares our thanks for the Lord's substitutionary death. The celebration of the ordinance expresses our fellowship with and in the Lord Jesus Christ as members of the Body of which He is the Head.
The Return of the Lord Jesus Christ
At the end of this age, according to His promise, Jesus Christ will return personally and visibly in His glory to the earth. The full consummation of the Kingdom of God awaits His return.
The Resurrection of the Dead
At the end of this age, there is to be a resurrection of both the righteous and the unrighteous. After death the bodies of men return to dust, but their spirits return immediately to God - the righteous to be with Him and the unrighteous to be reserved for the judgement.
Rewards and Punishments in a Future State
God has appointed a day of final judgement for the world. At that time Jesus Christ will judge every man and each will receive reward or punishment according to his deeds. Those judged righteous, in their resurrected and glorified bodies, will receive their reward and will dwell forever in Heaven with the Lord. The unrighteous will be consigned to Hell, the place of everlasting punishment.v