Rowland has been appointed by the General Assembly of the Presbyterian Church in Taiwan to help the Presbyterian Church in Taiwan relate to other churches of the World Council of Churches and the World Alliance of Reformed Churches. This includes the United Church of Christ in the Philippines, which he served while in the Philippines. The Presbyterian Church in Taiwan, say the Van Eses, has learned much about evangelizing under duress, and it wishes to share those insights with the world church. And since Taiwan is constantly bombarded by threats of invasion by China, the church urgently needs the prayerful support of the world church. Besides teaching pastors and future pastors in the M.Div. program, Rowland teaches future teachers of theology on advanced levels.
Students come from various Asian countries as well as from Taiwan for such training.
Rowland also teaches in the seminary's Lay Theology program. Judy is also involved in the life and worship of the school. She helps students learn English, allowing them to take advantage of the many biblical materials available and to serve in a multilingual world. A son of RCA missionaries Peter and Henrietta Van Es, who spent much of their ministry in Native American congregations, Rowland was born in Mescalero, New Mexico. Judy Van Dyke Van Es was born in Zeeland, Michigan, and is also a graduate of Hope College.