Most Revd Benjamin Kwashi and Bishop Angaelos spoke to a packed room at St Paul's Hammersmith church in London for the advocacy charity Christian Solidarity Worldwide's Pursue Justice 2016 event.
Archbishop Kwashi (below, left) told the group that while the massacre of believers in Nigeria was a common occurrence in the north of the country, the church there was continuing to grow.
He also affirmed the sanctity and preciousness of human life, and said that no amount of violence that Christians receive is ever an excuse for retaliation.
Blessed to share @CSW_UK #PJ2016 platform with #ArchbishopKwashi movingly speaking of witness and struggle in #Jos pic.twitter.com/T2FXyTPECb
— Bishop Angaelos (@BishopAngaelos) April 23, 2016
Bishop Angaelos (above, right) added that Pursue Justice 2016 was "a significant seed that would grow into a great oak" in the fight for religious freedom across the globe.
The Christian Labour MP Stephen Timms encouraged members at the conference to contact their MPs to advocate for Christians and others being persecuted.
As well as speeches there were also workshops where groups looked at specific aspects of tackling persecution, for example guidance on prayer (below).
Learning how to respond in prayer with @AndyFMusings @space2breathe at @CSW_UK #PJ2016 pic.twitter.com/Fqs2IghWn2
— scot bower (@scotbower) April 23, 2016
Pursue Justice 2016 comes just days after British MPs voted to recognise Islamic State's treatment of Christians and other minorities, such as Shia Muslims and Yazidis, as genocide.
The vote adds pressure on David Cameron to refer IS to the UN Security Council, who in turn can refer the group to the International Criminal Court.
The ICC can then open a formal investigation into IS, with the view to bringing them to trial.
