Thus they went on, till they came at the foot of the Hill Difficulty, 698 where, again, their good friend, Mr. Great-heart, took an occasion to tell them of what happened there when Christian himself went by. So he had them first to the spring. Lo, said he, this is the spring that Christian drank of, before he went up this hill; and then it was clear and good, but now it is dirty with the feet of some that are not desirous that pilgrims here should quench their thirst. 699 Thereat Mercy said, And why so envious, trow? But, said their guide, it will do, if taken up, and put into a vessel that is sweet and good; for then the dirt will sink to the bottom, and the water come out by itself more clear. 700 Thus, therefore, Christiana and her companions were compelled to do. They took it up, and put it into an earthen pot, and so let it stand till the dirt was gone to the bottom, and then they drank thereof. 701