Terah had a son called Abram, who, as he came to years of thought, did not fall in very readily with this worship of the moon. He appears to have become very early in life one of an order of doubters to whom the world owes much; to have suspected, at least, that the moon was not, as the priests taught, a cause in itself, but the effect of a cause. What was that cause? What was the fashioning hand behind the effect? In other words, he had come upon the doubt which explains much of the faith and achievement of the reformers and path-finders of the world. Neither doubt nor belief has any virtue in itself; we must determine the moral quality by its expression in action. Had Abram merely begun and ended with his doubts about the moon, he would have died and been as soon forgotten as any other commonplace sceptic before or since his day. The trouble is not that men doubt, but that they are often content to do nothing else. It may be better that they should believe wrong things, than that they should cease to believe in anything. Abram began, we imagine, to talk to his father about his misgivings, and notwithstanding the fact that Terah's trade was dependent on the popular religion, he seems to have yielded with something like enthusiasm to the greater personality of his son. Eventually they determined to leave Ur of the Chaldees and go, no matter how far, until they came to some place where they could worship in the new light which had come to them, or, as we should say, according to conscience. It was a formidable undertaking, for they knew not their destination--if even, indeed, they knew their direction. Some one--I forget who--has traced their route through Larsa, where men worshipped the sun; through Erech, where they worshipped the planet Venus--the bright evening star; through Nipur, where they bowed the knee to Baal; through Borsippa, where they worshipped the planet Jupiter; and on and on until they came to Haran, where the people worshipped--the moon! It was not until they came to Haran, that they touched, as it were, their first footprints, and found the old religion.