My friend Marge told me of a time when with her family she lived in Nottingham. Every Sunday evening she and her husband would invite round all the young people of the church. They would have a sing song and then listen to a message. If they were anything like the young people in my church, they made a lot of noise. Madge became worried that they were disturbing the neighbours, so she went round to them to apologise for the noise. The neighbours told her that there was no problem, so they carried on as usual.
Many years later it was time for Madge and her family to move. In saying goodbye, the neighbours gave them some astounding news. Every Sunday evening they had kept their windows open so they could hear the singing and even more importantly listen to the message. After all this time they said they were now Christians because of what they heard.
Just imagine! no heavy witnessing, no preaching to them, no specific prayers. Over the years Madge and her family had been showing the light of Christ, thinking they were acting for the young people but they were also witnessing to their neighbours. God indeed moves in mysterious ways.