Erastus Sabdono was born in Surakarta in 1959 into a Christian family. In 1976, he made the decision to devote his life to full-time ministry. He earned his bachelor’s degree from Bethel Indonesia Theological Seminary (formerly ITKI) in Jakarta. He later obtained a Master of Theology degree from Jakarta Theological Seminary on Jalan Proklamasi, Central Jakarta. He completed his doctoral studies and earned a Doctor of Theology degree from the Indonesian Baptist Theological Seminary (STTBI) in Semarang.
Currently, he serves as the General Chairman of the Synod of Gereja Suara Kebenaran Injil (GSKI) and as the Senior Pastor of Rehobot Ministry Jakarta. He is a speaker at seminars and revival meetings, as well as on television and radio. He is also a prolific author, lecturer, and an innovative Bible teacher.