Here is a quote from Keller's latest book called 'Centre Church':
'The popular saying "Preach the gospel; use words if necessary" is helpful but also misleading. If the gospel were primarily about what we must do to be saved, it could be communicated as well by actions (to be imitated) as by words. But if the gospel is primarily about what God has done to save us, and how we can receive it through faith, it can only be expressed through words. Faith cannot come without hearing....'
Keller was the keynote speaker at the London 2020 Vision conference for the clergy of the Diocese of London.
How exciting they have vision for 2020