He has led ministries in the church, including the Chinese Ministry, Compassionate Ministry, Men’s Ministry and most notably, the Prison Ministry. He first visited the Reformative Training Centre (RTC) at Changi Prison with Rev. Timothy Khoo in 2004 and the experience impacted him greatly. In 2007, the church decided to start the ministry and Joshua was appointed to lead it. He firmly believes in discipleship and mentoring, regularly meeting with ex-offenders personally or in small groups. Joshua is married to Christine and together they have a 16-year-old son, Isaac.