Complex sentence: It was founded by Rev Steve Chalke in August 1985, after being assistant minister at Tonbridge Baptist Church, Kent for four years, in order to open a hostel for homeless young people.
Split into simpler sentences: It was founded by Rev Steve Chalke in August 1985, who had been assistant minister at Tonbridge Baptist Church, Kent, for four years. His aim was to open a hostel for homeless young people.