Luke 16:13:

Years ago the gospel was preached to a number of tribes in Central Africa. Many people responded to the message and became Christians. Since they had no church building where they could gather for a time of prayer, they cleared a central spot in the jungle for that purpose. Soon individual trails from many different directions converged there as Christians regularly trudged through the brush. Whenever a convert seemed to be losing his first love and enthusiasm, other believers would admonish him by saying, ‘Brother, the grass is growing on your path.’