Chew was consecrated and enthroned as the 8th Bishop of Singapore by the then Archbishop of the Province of the Anglican Church in South East Asia and the then diocesan Bishop of Sabah, The Most Reverend Datuk Yong Ping Chung on 25 April 2000 at St Andrew's Cathedral. His consecration service was attended by Dr. Tony Tan, then Deputy Prime Minister of Singapore, dignitaries, bishops from the various dioceses and religious leaders from both fellow Christian denominations and non-Christian religions as well.