'_Let him that heareth, say!_'--that is the principle embedded in the text. The soul's exports must keep pace with the soul's imports. What I have freely received, I must as freely give. The boons that have descended to me from a remote ancestry I must pass on with interest to a remote posterity. The benedictions that my parents breathed on me must be conferred by me upon my children. '_Let him that heareth, say!_' What comes into the City of Mansoul at Ear Gate must go out again at Lip Gate. The auditor of one day must become the orator of the next. It is a very ancient principle. 'He that reads,' says the prophet, 'must run!' 'He that sees must spread!' With those quick eyes of his, James Chalmers saw this at a glance. He recognized that the kingdom of Christ could be established in no other way. He saw that the Gospel could have been offered him on no other terms. What, therefore, he had with such wonder heard, he began, with great delight, to proclaim. Almost at once he accepted a Sunday school class; the following year he began preaching in those very villages through which, as a boy, his exploratory wanderings had so often taken him; a year later he became a city missionary, that he might pass on the message of the Spirit and the Bride to the teeming poor of Glasgow; and, twelve months later still, he entered college, in order to equip himself for service in the uttermost ends of the earth. His boyish passion for books and boxes had been sanctified at last by his consecration to a great heroic mission. V '_Let him that is athirst come!_' 'I was athirst,' says Chalmers, 'and I came!'