A Week of Prayer for Christian Unity has been organised for 2007. Jointly prepared since 1968 by Faith and Order of the World Council of Churches (WCC) and the Roman Catholic Church, the Week of Prayer for Christian Unity is traditionally celebrated from 18-25 January or, in the Southern hemisphere, at other date.

With the theme set as 'Breaking the Silence', and focusing on the verse: "He even makes the deaf to hear and the mute to speak" (Mk 7:37) - the Week of Prayer for Christian Unity in 2007 calls Christians to express their growing unity both by "breaking the silence" and by joining together in responding to human suffering.

This year's Week of Prayer has its origins in the experience of Christian communities in the South African region of Umlazi, near Durban, a region deeply affected by unemployment and poverty but most of all by HIV/AIDS (it is estimated that 50% of the residents of Umlazi are infected with the virus).

The theme of "breaking the silence" challenges cultural norms wherever matters relating to sexuality are "not to be spoken about".

In Zulu, the term ubunqunu, literally "nakedness", indicates that these matters are taboo - and this reluctance to break the silence is costing lives. For the churches in Umlazi carrying out their ministry under these circumstances, the "visible unity of all Christians" is far more than a theological concept.