He has pastored two Bible-Presbyterian churches, and in between served with Haggai Institute, based in Hawaii, training leaders from over 100 nations. He is author of more than 15 books. He is also lyricist of 6 musicals. He serves as an adjunct faculty of Singapore Bible College, and was the Mentor to the first batch of graduates in the Pastoral Fellowship Program organized by the Centre for Servant Leaders of Singapore Bible College. Rev Dr David Wong has gone through three successions during his 45 years of ministry, and has written ¡°Beyond Finishing Well: Writing Life¡¯s Next Chapter¡± (2011) on the subject.