Sexual and Gender Identity Institute

Through research, training, and consultation, we work to further understanding of sexual and gender identity from within a Christian worldview, to explore the intersection of these identities with religious identity, and to be a resource to the church and to the broader culture.

Learn More About Our Work

“I witness many signs of hope. I don’t have to wait until all is well, but I can celebrate every little hint of the Kingdom that is at hand.” ― Henri J.M. Nouwen

Emerging Gender Identities: Understanding the Diverse Experiences of Today's Youth

"Yarhouse and Sadusky are unafraid of exploring the overlap of Christianity, psychology, and cultures, and equally unafraid of reaching out in peace. I admire such a version of Christianity." - Caryn LeMur

Find out about the new book from Mark Yarhouse and Julia Sadusky

Sexual & Gender Identity Institute

The mission of the Sexual & Gender Identity Institute is, from a Christian worldview, to further our understanding of sexual and gender identity, and the intersection of these identities with religious identity, and to be a resource to the church and to the broader culture.  We do this through research, training, and consultation.

The mission of SGI is consistent with the Wheaton College Community Covenant.

When Children Come Out

A Guide for Christian Parents

When a child comes out as LGBTQ+, Christian parents often find themselves navigating unfamiliar, unsettling terrain.  Mark Yarhouse and colleague Olya Zaporozhets deliver research-based insights and faithful wisdom in an essential and hopeful resource for parents, their friends, and church leaders.

gender identity and faith book cover

Gender Identity & Faith

Clinical Postures, Tools, and Case Studies for Client-Centered Care

Drawing from their extensive research and experience with clients, Mark Yarhouse and Julia Sadusky provide a timely, practical resource for practitioners to help people who wish to take seriously their gender identity, their religious identity, and the relationship between the two.

Theology podcast logo

Theology & podcast

February 3, 2023: Theology & Human Sexuality 

Mark Yarhouse and Theologian David Bennett unpack the term human sexuality and discuss desire from a theological point of view, as well as how to practice solidarity with those who live or think differently than us. 

The Theology & podcast is a project of InterVarsity's Tehological Formation team. 

SGI Lab 2022


We have anywhere from 5-6 lines of research being conducted at any one time. Discover our current highlights.


Consultation and Training Services

We offer consultations and clinical trainings related to sexual and gender identity concerns.

Books from above


Browse a variety of helpful resources around gender identity issues including articles, workbooks, videos, books, professional referrals, and academic papers.

Mark Yarhouse
About the Sexual and Gender Identity Institute

Learn more about who we are and what we do. Meet the professionals who conduct original research on sexual or gender identity and faith to help further our understanding of these complex experiences.