Christian Studies as a discipline of learning introduces students to the world of religion and Spirituality, which are integral components of the fabric of all cultures. It aims to give students a clear understanding and appreciation of the Christian story through an exploration of the biblical text and Christian literature. It acknowledges that all people are on a lifelong journey of faith expressed in many dimensions of life, for example, relationships, community life, the environment, religious beliefs and traditions, situations of human need and suffering, ethical and justice issues. It presents to students a Christian worldview and a pathway for making meaning of their lives.

Worship is an integral part of the programme at St Martins. Students are actively involved in whole school worship on Friday mornings as well as year level devotions and class devotional times.