Read about the 17:21 vision.

The vision statement is that from March to October 2017, evangelicals of all backgrounds and traditions will be affirming their commitment to unity for mission at events, festivals and conferences.
The prayer of Jesus in John 17 verse 21 encourages and challenges us “May they all be one that the world might believe”.
With shared prayer, readings, songs and an artistic symbol of unity, tens of thousands of Christians across the UK will have the opportunity to celebrate unity for mission in 2017.