Faith is not simply a private matter, or something we practice once a week at church. Rather, it should have a contagious effect on the broader world. Jesus used these images to illustrate His kingdom.: a sprinkle of yeast causing the whole loaf to rise, a pinch of salt preserving a slab of meat, the smallest seed in the garden growing into a great tree in which birds of the air come to nest.
Philip YanceyHuman beings do not readily admit desperation. When they do, the kingdom of heaven draws near
Philip Yancey