Faculty and Staff

Seminary Rector

Rev. Dr. Heinz A. Hiestermann

Dr. Hiestermann joined the faculty in 2020, specializing in New Testament Studies. He was appointed as seminary rector in 2021.

After completing his BCom degree in Business Management at the University of Pretoria (1999-2001), Dr. Hiestermann started his theological studies with a B.A. degree (2004-2006), again at the University of Pretoria. Thereafter he studied at the Lutherische Theologische Hochschule in Oberursel, Germany (2007-2012), including some semesters at the Johannes Gutenberg University Mainz and the Goethe University Frankfurt. He completed his Ph.D. in New Testament Studies at the University of Pretoria (2016).

He served as pastor of the St. Peter’s Evangelical Lutheran Congregation, Greytown, South Africa (2014-2019) (FELSISA). Since 2017 he serves as chairman of both the Theological and Examination Commissions of the FELSISA.

He and his wife, Renate, have two daughters.

Email him at hhiestermann(at)lts.ac.za.

Full-time Faculty

Rev. Mbongeni John Nkambule (Registrar)

Rev. Nkambule has served on the faculty of the LTS since 2012. His area of concentration is practical theology, although he does also have a love for Old Testament/Hebrew studies. Rev. Nkambule serves at the seminary registrar.

He studied at Enhlanhleni Theological Seminary (predecessor to the LTS) until it relocated to Pretoria, where he graduated in 2002. He continued his theological studies at the University of Pretoria, where he received his B.A. Honours in Missiology (2005), and, after some years of parish ministry, his M.A. in Missiology (2013). Rev. Nkambule is currently enrolled as Ph.D. student at Concordia Theological Seminary, Fort Wayne, IN, USA.

He served as pastor at Tembisa Lutheran Church (2004-2006), and at the dual parish of Naledi and Mohlakeng Lutheran Churches (2007-2018) (LCSA). He also served in prison ministry in Johannesburg Correctional Services and on the board of Lutheran Hour Ministries South Africa (2009-2012). In early 2018, Nkambule was released from parish ministry in order to lecture at the LTS full-time.

He and his wife, Thandi, have three children.

Email him at mjnkambule(at)lts.ac.za.

Mr. Mintesinot Birru Hanfato

Mr. Mintesinot Birru Hanfato graduated with B.Th. (1998-2002) from Mekane Yesus Seminary, and got his M.Div in 2009 from Ethiopian Graduate School of Theology. He served as a youth ministry leader, Synod youth ministry secretary, Synod Gospel and Mission department director, Bible translator, Comprehensive Project manager, Lecturer at different Bible schools and Colleges. He joined LTS coordinating distance education which was coming from Mekane Yesus Seminary and giving tutorials for distance education learners at LTS since 2015. He serves as Librarian and Lecturer at LTS since 2018. In 2020, he is registered with UNISA for his Ph.D. study.

Email him at mintesbir(at)gmail.com.

Part-time Lecturers

Rev. Musawenkosi Nathan Mntambo

Rev. Mntambo served on the faculty of the LTS from 2001 to 2015, and recently resumed lecturing at the LTS (2018-) on a part-time basis.

He graduated from Enhlanhleni Theological Seminary with a certificate in theology in 2000, following which he went on to graduate with a S.T.M. (Master of Sacred Theology) from Concordia Theological Seminary, Fort Wayne, IN, USA.

He has served as pastor of the Evangelical Lutheran Congregation, Arcadia, Pretoria (associated with FELSISA) since 2012. In 2016, he was enrolled in the Ph.D. program at Concordia Seminary, St. Louis, MO, USA.

He and his wife, Nokulunga, have two children.

Email him at mntambomn(at)gmail.com.

Ds. Robert van Niekerk

Robert van Niekerk received his B.Th. (2013), his B.A. in Ancient Cultures and Biblical Languages (2014), and his M.Div. (2014) from the University of Pretoria. He has also received diplomas for church ministry and contextual ministry (2014). He teaches Greek at LTS.

Adjunct lecturers

Rev. Dr. (habil) Werner Klän

Professor and dean emeritus of the Lutherische Theologische Hochschule in Oberursel, Germany; Extraordinary Visiting Professor at the University of Pretoria

Rev. Tobias Ahlers

Rev. Ahlers has begun lecturing at the LTS in a part-time capacity since early 2018. His area of special interest is Lutheran systematics.

He received his B.A. in Ancient Languages from the University of Pretoria (2004), and then his B.A. Honours as well (2005). He pursued his theological studies at the Lutherische Theologische Hochschule in Oberursel, Germany, and at Westfield House, Cambridge, UK, where he graduated in 2009.

He has served as pastor of the English Lutheran Fellowship in Randburg since 2011, and also at St. John’s Lutheran Congregation in Kempton Park since 2013. Since 2021 he is serving in the St. John’s Lutheran Parish, Shelly Beach (FELSISA).

He is married to Walda. They have two children.

Email him at pastortobyahlers(at)gmail.com.

Rev. Dr. John T. Pless

Professor at Concordia Theological Seminary, Fort Wayne, IN, USA; for a more complete biography, click here.

Rev. Dr. Sibongiseni Elliot Sithole

Translator of the isiZulu Bible with the Bible Society of South Africa; LCSA pastor; Assistant Lecturer at the LTS

Dr. Paul Mueller

Director of Lutheran Leadership at Concordia University, Portland, Oregon; for a more complete biography, click here.


Mrs. Rosemarie Rynners

Office administrator

Rosemarie is married to Neil Rynners. After living in Johannesburg for some time, they have now returned to Pretoria. They have two adult sons, one of whom, Kai, lives in Pretoria, while the other, Claus, resides in Utrecht in the Netherlands.

Email her at LTSinTshwane(at)gmail.com.

Mr. Aaron Mthimunye

Groundsman, facilities

Mrs. Emily Ngubeni

Kitchen supervisor, caretaker

Mr. Mthimunye and Mrs. Ngubeni are married. They have one adult child and one grandchild.

Mrs. Martha Mahlangu

Cook, cleaning person