Backed by the Christian relief agency, Tearfund, the film featured Hewitt singing the title song "A World of Difference.

[14] Hewitt has regularly toured in Germany, Switzerland, Spain, Poland, US, Belgium, Netherlands, France, Sweden, Norway, Denmark, Finland, Ireland, New Zealand, Australia (once), and Canada (once).

He has performed in venues ranging from high security prisons in Singapore and Bolivia to the Grand Ole Opry in Nashville, after being invited by country singer George Hamilton IV.

[18] Having been influenced in his early thinking and theology by Martin Luther King Jr, Archbishop Trevor Huddleston, Canon John Collins, Monsignor Bruce Kent among others, Hewitt's invitation by Tearfund to travel with the organisation to Haiti in 1978 confirmed the direction of his music and ministry.

"[25] In 1989 Hewitt controversially gave open support to Viraj Mendis, a Sri Lankan refugee who claimed sanctuary in a Manchester church in an attempt to avoid deportation from the UK.

[26][27] In 1989–90 Hewitt toured with poet Stewart Henderson and mime artist Geoffrey Stevenson in an interdisciplinary and multimedia show called Broken Image.

All three performers addressed the issue of poverty, with the Church Times reporting in its review that Hewitt's songs were "full of peace and justice slogans, which had the audience singing along.

[30] The following year, Hewitt presented the programme, a light religious musical show aimed at young people, with singer Bernie Flint.

[33][34] In 1985 Hewitt founded the human rights charity Amos Trust to support his visits to projects in parts of the world where funding would not be available to finance his trips.

The trust took this as its credo, the text particularly resonating with Hewitt as it comes immediately after God's rejection of music—the only place in the Bible where this occurs apparently—when it is produced by musicians who ignore the poor.

[36][37] In the 1990s Amos Trust began organizing trips to the international projects it supports, to introduce people to the problems in different countries, with a view both to enlarging a global understanding of poverty and encouraging activism when visitors returned to the UK.

[3] Toward the end of this advisory role he wrote a book for Lent called Pilgrims & Peacemakers, which by way of featuring Palestinian and Jewish mediators, espoused his progressive approach to Christian mission.

[41] During his time with the charity he released a musical, The Feast of Life, for churches to perform during Christian Aid Week to bring attention to the causes supported by the agency.

"[45] Hewitt's interest in the work of peacemakers in Israel/Palestine began when he read the best-selling book, Blood Brothers, by the Palestinian-Israeli Abuna, Elias Chacour, and after inviting him to speak to the Greenbelt Festival in 1988.

"[52] Hewitt cites as one of his influences Gustavo Parajón, Nicaraguan Baptist pastor and founder of the Council of Protestant Churches of Nicaragua (CEPAD).

[53][54] Hewitt's earliest encounters with street children were in Brazil, which inspired his protest song "Little Outlaws, Dirty Angels" on his Lonesome Troubadour album in 1991.

[58] Acknowledging the legacy of previous Christian protesters, Hewitt recorded songs from an 1845 hymnal compiled by the Chartists, who campaigned for social justice in Victorian Britain.

Containing lyrics but no tunes, the hymn book was discovered by a lecturer in nineteenth-century writing at Manchester University, Mike Sanders, who discussed its egalitarian content in 2012.