"The angel of the Lord encampeth round about them that fear him, and delivereth them" (Psalm 34:7).
I was tired. It was the end of a long day of activity as leader of the youth department in São Paulo, Brazil. At the time I lived in the Lapa district and worked in Vila Matilde, which is around 22km away. This meant my commute included two trains and a 15-minute walk between stations each way. Nowadays this trip takes about an hour and a half each way, but today's modern metro system was a future project back in those days, when trips took much longer.