The supreme standard for belief and practice is the Bible, received as the inspired and inerrant Word of God. In common with all historic Presbyterian churches, the Westminster Confession of Faith and the Larger and Shorter Catechisms are held to be a systematic and accurate summary of the teaching of Scripture. Further expansion of the church’s teaching is found in her 'Testimony', which applies these doctrines to various specific topics. These documents are the subordinate standards of the denomination.
Reformed Presbyterian theology is apostolic, Protestant, Reformed (or Calvinistic) and evangelical. There is a desire to maintain in its depth and purity the Christian faith handed down from the beginning. The basic principles of the denomination are not different from those held by many other churches. Such distinctives as there are lie in the application and implementation of these truths.
In particular, Reformed Presbyterians give prominence to the kingship of Christ. This has implications for human life in all its spheres. Areas which have received special attention (and where Reformed Presbyterian practice is, in this century, somewhat unusual) are worship and politics. The worship of the King must be governed in every detail by what he has required in his Word. The nation is under obligation, once admitted but now repudiated, to recognise Christ as her king and to govern all her affairs in accordance with his will. Words from Colossians 1:18 express the core of Covenanting theology: 'that in everything he (Christ) might have the supremacy'.