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About this website


This is a website of Dr. In-Sub Ahn, who studies and teaches church history, Reformation (especially John Calvin), reformed theology, Asian theological education and the reunification of Korea at Chongshin University and Theological Seminary..

安仁燮 敎授

總神大學校 敎授, 敎會史 (2005-現在)
韓國Calvin學會 會長 (2010)
韓國基督敎統一學會 會長 (2016-現在)

Chongshin University & Seminary

< Seoul Campus >

143, Sadang-Ro, Dongjak-gu, Seoul, 156-879, Korea


<Yangji Campus>

Chongshin University

110 Hagchon-ro, Yangji-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do

South Korea (Postal Code: 17157) 

About Dr. In-Sub Ahn

Professor (Church History) of Chongshin University and Theological Seminary, Seoul Korea (2004-present)

At Chongshin University:

Director of Reformed Theology Research Center (RTRC) (2017-2018)

Director of Library (Yangji campus) (2017-2018)

Director of Training Institute for Full-Time Faculty (2014-2018) of Chongshin University

Project Manager of Refo500 Asia (2011-present)

Board Member of ATA (Asia Theological Association) (2016-present)


President of Korea Calvin Society (2010)
President of Christian Society for National Reunification (2016-present)
Chairman of the Board of North & South Love Network (2013.12-present)


Dean of Global Reformed Theology (2016-2017) / (Dean of International Cooperation, 2012. 3-2016) of Chongshin University

Life story of Dr. In-Sub Ahn

Born in Namyangju, South Korea on the 5thof October 1965, Dr. In-Sub Ahn is a Professor of Chongshin University andSeminary, and a pastor of the Presbyterian Churches in Korea.


He studied History at Korea University in Seoul between 1985 and 1989, graduating with a Bachelor of Arts (B.A.).

From 1992to 1995 he studied Theology at the Presbyterian General Assembly (Chongshin) Theological Seminary in Korea, graduating witha Master of Divinity (M. Div.).

He workedat Huam Presbyterian Church and YonHee Presbyterian Church in Seoul as an assistant pastor for three years.


He was invited to accept aresearch position in Church History at the Theological University of the Reformed Churches in Kampen (ThUK), the Netherlands, with a full scholarship.

He embarked on his research in January 1998.


In September 1999 he graduated with a Master of Theology (Th.M.) degree at ThUK. The title of his Th.M. Thesis was “Calvin’s Use of Augustine’s Ideas about Church and State”; it was carried out under the guidance of Prof. dr. Auke J. Jelsma.


In 1999 he started his Ph.D. research at ThUK under the joint supervision of his advisor (Promotor) Prof. dr. Auke J. Jelsma (ThUK)and second advisor (tweede Promotor) Prof. dr. Willemien Otten (Utrecht University). Prof. dr. Pieter N. Holtrop (ThUK) was hisreferent.

He got a Ph.D. degree at ThUK with a title of “Augustine and Calvin about Church and State.”


He is managing a Church History Website,, since 2000.


He is now a Professor of Chongshin University and the Theological Seminary in Seoul, Korea.


He worked as a President of Korea Calvin Societyin 2010.

He is working as a President of Christian Society for National Reunification since 2017.

He is currently working as Board Member of ATA (Asia Theological Association).


He is married to dr. Mi-Rang Kang since 1995, who also got a Ph.D. in Practical Theology (Christian Education) at the same University (PThU, previous name was ThUK).

Together they have a daughter, Ji-In Ahn, who was born in Kampen on April 28, 2000.

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