The World Evangelical Alliance is this week commemorating it's 175th anniversary.
In 1846, 800 evangelical leaders from 52 denominations and 11 countries came together in London to establish the alliance.
Today, it is a global network representing around 600 million Christians.
Secretary General of the WEA, Dr Thomas Schirrmacher, is asking evangelicals around the world to unite in prayer as they mark the milestone anniversary.
In a statement to the Christian Post he said :
"The WEA continues to be a testimony for the fact that amid the incredible diversity, evangelicals be united together as one. In 1846, the churches came from the whole spectrum of the Protestant faith: from Reformation times, such as Anglicans, Lutherans, Reformed and Anabaptists; from the following centuries, such as Baptists, Methodists and later the Salvation Army; and today it also includes many newer churches formed in the 20th century, such as Pentecostals, Charismatics and Independents,
"Also considering the fact that each national Evangelical Alliance and each regional Alliance has its own unique history, and that evangelicals come from hundreds of ethnic groups and speak around 1,000 languages, the WEA is as colorful as never before. And this is something we would like to recognize through this Jubilee.
"As a global network that has its roots in the local churches in the neighborhoods, we continue to hold on to the central role of Jesus Christ as our personal savior, the Bible as our supreme constitution and the goal to transform the world by preaching and practicing the 'evangel', the gospel.
"Prayer has always been foundational to the WEA, so we want to begin the Jubilee by recognizing the diversity of the global body of Christ and the unique opportunities and challenges they face.
"We are very conscious that amid the ongoing pandemic and various other natural or man-made disasters, there is a great need for prayer today. So we invite you to join us as we commemorate 175 years and as we continue to put every effort into fulfilling Jesus' prayer that all of us may be one, so that the world may believe." (John 17:21-23)