OAT mediates the following evangelistic-related activities:

• Supporting evangelistic activities based at our church centres or communities within M25, aiming at bringing people into our church.
• Representing our church to develop multi-church evangelistic activities within M25.
• Mobilising members of our church for evangelism.
• Raising awareness of the necessity of prayer in evangelism.
• Mediating training on skills in evangelism.
• Promoting collaboration and co-ordination on evangelistic activities originating from individual congregations.