Hocken was active in the charismatic movement from 1971 on and served as Executive Secretary of the Society for Pentecostal Studies from 1988 to 1997. He was a member of the unofficial Catholic – Messianic Jewish dialogue (from 2000) and also served as a member of the Theology Commission for the International Catholic Charismatic Renewal (from 2003). He wrote a wide range of books on Charismatic Renewal, Christian unity and Messianic Judaism. He died on 10 June 2017, aged 84.
