En Es

Educates for
the Mission

Empowering the People of God to Serve the People of God

OST equips for effective ministry and witness to Jesus so that all who are called can serve their own congregations and denominations.

OST Community

Three Unlikely Mystics: Catherine of Siena, Carl Jung, and Etty Hillesum

Three Unlikely Mystics: Catherine of Siena, Carl Jung, and Etty Hillesum

Explore the lives of Catherine of Siena, Carl Jung, & Etty Hillesum, uncovering their unique insights into mysticism & spiritual growth.Read More »
Fierce and Tender Wisdom: Exploring Wild Mercy

Fierce and Tender Wisdom: Exploring Wild Mercy

Discover wisdom from women mystics across traditions, fostering contemplative listening, creative expression, and spiritual connection.Read More »
Sankofa Institute Christian Unity Service

Sankofa Institute Christian Unity Service

Join the Sankofa Institute’s Annual Christian Unity Service to honor Dr. King’s dream with praise, worship, and a reception.Read More »
Sankofa Institute | Come, Taste & See Conference

Sankofa Institute | Come, Taste & See Conference

FREE conference on Black Church Studies! Learn from experts, explore diverse courses, and discover how to lead in multi-cultural communitiesRead More »

Academic Degrees

Preparing Pastoral Leaders

Our faculty is dedicated to the teaching of pastoral ministry rooted in theology and spirituality. For over 120 years, OST has been forming leaders to preach the Gospel to the poor and most abandoned.

Community of Missionary Disciples

OST opens its doors to Christians from all denominations to access theological education. We are an international, intercultural, bilingual, and ecumenical community of learning.

Rooted in Catholic Tradition

Founded in 1903, with a mission dedicated to the teaching of spirituality, diversity, and ministry, OST continues to provide theological education that transforms lives. In 1849, the Missionary Oblates of Mary Immaculate (OMI), an international apostolic religious congregation of priests and brothers, came to San Antonio. Their mission is to preach Christ’s message and serve the people of God, especially the poor and marginalized.