The Book of Common Order Commonly Called John Knox's Liturgy by Church of Scotland is a religious text providing guidance on sacraments catechism prayers hymns and religious practices in the Christian faith particularly in Scotland. It aims to make religious teachings accessible to Gaelic-speaking populations emphasizing Protestant faith divine law and combating false beliefs. The text addresses challenges faced by religious leaders stresses the importance of following God's will and educates individuals on spiritual matters through prayers and teachings.