Administration
Derrill Corbin, M.A.
President
Derrill and his wife, Michal, are the senior pastors of Mannahouse Church in Portland, Oregon. A church planter, pastor, and author with deep roots in the Pacific Northwest, Derrill has served as lead pastor of Mannahouse and Chancellor of PBC since 2024. He is dedicated to advancing Jesus’ movement through discipleship.
Walter Madison
Interim Dean
Walter has been a member of Mannahouse since 1985 and on staff since 2000. Walter spent 15 years in business, managing his own company, while serving pastorally alongside his wife, Robyn. He has been an Elder for 23 years, an adjunct professor, and the leader of one of our campuses. He currently leads our Global Department, supporting missionaries and church planters worldwide. His experience in local church leadership and global ministry uniquely positions him to lead as Interim Dean of Portland Bible College.
Travis Arnold, M.A.
Academic Dean
Travis graduated from PBC in 2007. He returned in 2008 to teach full-time while completing his Master of Arts in Biblical and Theological Studies at Western Seminary. Travis is an elder at Mannahouse and at a church plant in Central Washington. He and his wife, Rachel, live in Vancouver, Washington.
Ariana Chávez Jaquith, B.Th.
Online Program Manager
Ariana was born in Portland but grew up in Vientiane, Laos, as a missionary. She moved to Portland to attend Portland Bible College in 2020, pursuing her Bachelor’s degree in Theology. Upon graduating in 2024, she joined the PBC team. Ariana and Mateo tied the knot in September of 2026, and together they make up the Online Program.
Mateo Chávez Jaquith, B.Th.
Online Program Coordinator
Mateo was born in Lima, Peru. He moved to Portland in 2022 and graduated with his Bachelor of Theology in 2026. After graduating, he joined the PBC team. Mateo and Ariana tied the knot in September of 2026, and together they make up the Online Program.
Mariah Corbin, M.A.
Director of Strategic Projects
Mariah graduated with her Bachelor of Theology from Portland Bible College in 2021. She joined the PBC staff in 2022 and, in 2023, graduated from Regent University with a master’s degree in organizational leadership.
Michal Corbin, B.Th.
Dean of Women
An alumna of Portland Bible College, Michal loves serving at PBC. She and her husband, Derrill, are senior pastors of Mannahouse. She loves impacting the world around her through fitness and seeing how truly we are beautifully and wonderfully made.
Mark Daniels, B.S.
Dean of Students
Mark and Maureen Daniels live in Camas, Washington, with their four children. He holds a degree in Psychology from George Fox University. Mark has been on staff at Mannahouse since 1998. He serves as the Dean of Students and teaches leadership and counseling courses.
Betty Escalante
Head Cook
Betty, a native of El Salvador, joined the PBC family in 2006. With over 30 years of experience in the hospitality industry, she now thrives on uniting her passion for cooking and her love of connecting with students. Betty has a shepherd’s heart and enjoys spreading the message of God through the joy of food and hospitality.
Julliana Flavio, B.Th.
Music Department Director
Juliana Flavio is Lead Worship Pastor at Mannahouse Church in Portland, Oregon. Originally from Brazil, she has over 20 years of experience in worship ministry, including 15 years with MFI churches in Brazil. Called to the Pacific Northwest in 2019, Juliana is passionate about raising biblically grounded, musically equipped, and spiritually mature worship leaders who glorify God with skill and humility.
Rachelle Layzell, B.Th.
Registrar
Rachelle has an extensive background both in ministry and entrepreneurship. She was part of a church plant team, spent the past 20 years starting and running a local business, and has pastored in multiple contexts. She has a heart for students and the nations. She is a proud mother of three children and enjoys photography.
Elisa Lont, B.C.M
Music Department Coordinator
Born in Oregon, Elisa moved with her family to Osaka, Japan, as a missionary when she was a child. She returned to Portland to attend PBC, graduating with a BCM in 2021. In addition to her administrative role, she also teaches multiple classes, coordinates the department recitals, and academically advises music students.
Dr. Simon Mould, Ed.D.
Strategic Advisor
Dr. Simon Mould served as the President of Portland Bible College. He holds an MA in Government and Public Policy from Regent University and a Doctor of Education from Regent University.
Serena Reese, B.Th.
Admissions Recruiter
Serena graduated with a Bachelor of Theology in 2024. As a student, she served as a dorm leader and active member of the Student Leadership Team. She is passionate about people and looks forward to meeting new students and connecting them to the PBC community.
Faculty
Travis Arnold, M.A.
Academic Dean
Travis graduated from PBC in 2007. He returned in 2008 to teach full-time while completing his Master of Arts in Biblical and Theological Studies at Western Seminary. Travis is an elder at Mannahouse and at a church plant in Central Washington. He and his wife, Rachel, live in Vancouver, Washington.
Carol Bouschor, M.A.
LCIO Director
Carol completed her Master’s degree at Portland State University in 1972. Carol and Edmund founded Christian Missionary Educators and the Language & Culture Institute in Oregon (LCIO), both based in Portland. In addition to administering the ESL Program at PBC, Carol teaches and is a life coach and mentor.
Edmund Bouschor, M.A.
LCIO Executive Director
Edmund completed his Master’s degree at Portland State University in 1972. Edmund and Carol founded Christian Missionary Educators and the Language & Culture Institute in Oregon (LCIO), both based in Portland. In addition to administering the ESL Program at PBC, Edmund teaches and is a life coach and mentor.
Mariah Corbin, M.A.
Director of Strategic Projects, Associate Professor
Mariah graduated with her Bachelor of Theology from Portland Bible College in 2021. She joined the PBC staff in 2022 and, in 2023, graduated from Regent University with a master’s degree in organizational leadership.
Michal Corbin, B.Th.
Dean of Women, Adjunct Professor
As an alumna of Portland Bible College, Michal loves serving at PBC. She and her husband, Derrill, are senior pastors of Mannahouse. She loves impacting the world around her through fitness and seeing how truly we are beautifully and wonderfully made.
Mark Daniels, B.S.
Dean of Students, Adjunct Professor
Mark and Maureen Daniels live in Camas, Washington, with their four children. He holds a degree in Psychology from George Fox University. Mark has been on staff at Mannahouse since 1998. He currently teaches Introduction to Counseling at PBC.
Julliana Flavio, B.Th.
Music Department Director
Juliana Flavio is Lead Worship Pastor at Mannahouse Church in Portland, Oregon. Originally from Brazil, she has over 20 years of experience in worship ministry, including 15 years with MFI churches in Brazil. Called to the Pacific Northwest in 2019, Juliana is passionate about raising biblically grounded, musically equipped, and spiritually mature worship leaders who glorify God with skill and humility.
Joanne Hubbard
Adjunct Professor
Joanne began teaching at PBC in the 1980s as an admin to CLTI, a professor, and a mentor to students. She helped develop the Affiliate Program, facilitated several online courses, and taught a class on teaching. Because of her degree in education and her long experience in teaching, Joanne brings a unique perspective to the school.
Jeff Jaquith, M.A.
Adjunct Professor
Jeff is a graduate of Portland Bible College and Western Seminary. He and his family served as Mannahouse missionaries in Laos for 16 years, and he is now the Discipleship Pastor at Mannahouse Portland. He teaches the missions courses at PBC as well as World Religions.
Lanny Hubbard, M.A.
Professor
Lanny is a native of Portland, Oregon, and an alumnus of PBC, graduating in 1979. He later completed a Master of Arts in Exegetical Theology at Western Seminary. He has taught at PBC since 1978. He is highly respected as a theologian and professor. He is an elder emeritus at Mannahouse Church.
Mark Jones
Adjunct Professor
Dr. Mark Jones is an elder at Mannahouse and oversees the Prayer Ministries of the church. He is retired but volunteers extensively at Mannahouse. His remarkable enthusiasm and excitement for prayer are both contagious and faith-building. He currently teaches Ministry of Prayer in the Spring semester.
Daniel Lont, B.Th.
Adjunct Professor
Daniel Lont graduated from PBC in 2021 with a BTh. He married alumnus Elisa Lont. Daniel originally started work at PBC with his multi-talented skill set as a Curriculum Developer. He now works at Mannahouse Portland in the Worship and Creative Arts Department.
Elisa Lont, B.C.M.
Music Department Coordinator
Born in Oregon, Elisa moved with her family to Osaka, Japan, as a missionary when she was a child. She returned to Portland to attend PBC, graduating with a BCM in 2021. In addition to her administrative role, she also teaches multiple classes, coordinates the department recitals, and academically advises music students.
Townsend Losey, M.M.
Associate Music Professor
As a relational composer who values meaningful collaboration, Townsend excels at composing with specific ensembles in mind, reflecting their unique heart, vision, and strengths. Townsend joined the PBC staff in 2025 as the Associate Music Professor. He lives in Portland with his wife, Gabrielle, and children.
Glenda Malmin, B.Th.
Professor
Glenda teaches several courses in theology and the humanities disciplines. She is known and loved for her practical wisdom and her willingness to pastor her students. She is a well-known speaker with a strong prophetic message.
Ken Malmin, B.Th.
Professor
Ken has served as one of our distinguished professors since 1973. For over 50 years, Ken has developed and continues to teach numerous courses and has written corresponding textbooks for some of our key courses. Ken served as the Dean and Academic Dean of the College and continues to serve in an advisory capacity on academic affairs. He serves as an elder at Mannahouse and is on the Apostolic Leadership Team of Ministers’ Fellowship International (MFI).
Walter Madison
Adjunct Professor
Walter Madison has been a part of Mannahouse since 1985. Walter spent 15 years in business, both in management and owning his own business, while also serving pastorally with his wife, Robyn, at Mannahouse. Walter has been on staff at Mannahouse since 2000.
Sarah Nashif-Tan, M.B.A.
Adjunct Professor
Sarah Nashif-Tan joined the Portland Bible College staff in 2009. She pioneered the Online Program and Church Partnership Programs, which have served thousands of students in credit and audit programs. She teaches at PBC, is an elder at Mannahouse, and serves on numerous boards.
Melissa O’Neal
Adjunct Professor
Melissa O’Neal loves teaching the Evangelism class and helping others feel bold and confident in sharing their faith. She holds an Associate’s degree in Christian Humanities from PBC and a Master’s in Education from Concordia University. She currently teaches part-time at an elementary public school and part-time for PBC.
Dr. Simon Mould, Ed.D.
Adjunct Professor
Dr. Simon Mould served as the President of Portland Bible College. He holds an MA in Government and Public Policy from Regent University and a Doctor of Education from Regent University.
Ben Trolese
Adjunct Professor
Ben Trolese and his wife, Miriam, are the campus pastors of the Mannahouse Tigard campus. Ben is a gifted communicator. He currently teaches the Homiletics courses at PBC.
Board of Directors
Under the governance of Mannahouse Eldership
Howard Rachinski
Chairman
Howard Rachinski is the founder and former CEO of Christian Copyright Licensing International (CCLI). He is an elder of Mannahouse and an alumnus of PBC.
Derrill Corbin
President
Pastor Derrill Corbin is the Senior Pastor of Mannahouse Church and Chancellor of Portland Bible College. He is also an author and church planter.
Dr. Simon Mould
Strategic Advisor
Dr. Simon Mould served as the President of Portland Bible College. He holds an MA in Government and Public Policy from Regent University and a Doctor of Education from Regent University.
Ken Malmin
Professor
Ken joined the staff of Portland Bible College in 1971. He also serves as an executive pastor and elder at Mannahouse and is on the Apostolic Leadership Team of Ministers’ Fellowship International (MFI).
Carlos Marin
Board Member
Carlos is an elder at Mannahouse and a former Vice President of Advancement at PBC. He has an M.B.A. from George Fox University and extensive experience in education management and coaching.
Jimmy Oentoro
Board Member
Dr. Jimmy Oentoro is the founder and Chairman of International Full Gospel Fellowship Global. He is an alumnus of Portland Bible College.
Jonathan Wilkins
Board Member
Pastor Jonathan Wilkins is the Lead Pastor of City Life Church in San Francisco, California, and Chairman of Ministers Fellowship International. He is an alumnus of Portland Bible College.