The year is 1964. I was a student at Cambridge on a team visit with Operation Mobilisation.

The team left Belgium for the villages of Dordogne in southern France where we would tell people in our limited schoolboy, or girl, French of God's love and operate a mobile bookshop.

I was put in charge of vehicle maintenance by our team leader, being one of the few who could drive and who would admit to knowing what a dip stick looked like.
Checking the oil once a month was what I was used to doing to the family's small car. I was not fully aware that the ancient lorry we were in needed far more regular attention. When I checked the oil that first evening I discovered absolutely no trace of oil on the dipstick.  
 
Ashamed I admitted my failure to the team leader. With words of wisdom reminding me that God was looking after us he enabled me to continue, but now regular oil checks were programmed into the day. Without further mishap we reached the area we were to visit.

 Each day the back of the lorry became a mobile bookshop as others talked about Jesus.
Then one day the front suspension shattered as I parked the lorry in a narrow village street. Utterly dejected I sat in the cab blaming myself. Down the road walked a villager complete with beret. He looked at the state of the lorry, or faces and our books.
"Don't worry" he said, "I love Jesus, like your books and I run the local garage. I'll arrange for your truck to be repaired. It will take a day. No charge!"
I began to appreciate that when I could do nothing God could do anything.
As we had no vehicle we went to the surrounding village in pairs. We took books but no money or food, asking God to provide.
"Go! I am sending you out like lambs among wolves. Do not take a purse or bag or sandals; and do not greet anyone on the road." (Luke 10:3)
We all returned with a story of how God had prepared a meal for them. For me a dear old couple exchanged a book for a meal of home made bread and cheese as they had no change for a book they wanted. 

God is good!