So impregnable was this stronghold deemed, that any attempt that David might make to get possession of it was treated with contempt. The precise circumstances of the siege are somewhat obscure; if we compare the marginal readings and the text in the Authorized Version, and still more in the Revised Version, we may see what difficulty our translators had in arriving at the meaning of the passage. The most probable supposition is that the Jebusites placed their lame and blind on the walls, to show how little artificial defence the place needed, and defied David to touch even these sorry defenders. Such defiance David could not but have regarded as he regarded the defiance of Goliath--as an insult to that mighty God in whose name and in whose strength he carried on his work. Advancing in the same strength in which he advanced against Goliath, he got possession of the stronghold. To stimulate the chivalry of his men he had promised the first place in his army to whoever, by means of the watercourse, should first get on the battlements and defeat the Jebusites. Joab was the man who made this daring and successful attempt. Reaping the promised reward, he thereby raised himself to the first place in the now united forces of the twelve tribes of Israel. After the murder of Abner, he had probably been degraded; but now, by his dash and bravery, he established his position on a firmer basis than ever. While he contributed by this means to the security and glory of the kingdom, he diminished at the same time the king's personal satisfaction, inasmuch as David could not regard without anxiety the possession of so much power and influence by so daring and useful, but unscrupulous and bold-tempered, a man. The place thus taken was called the city, and sometimes the castle, of David, and it became from this time his residence and the capital of his kingdom. Much though the various sites in Jerusalem have been debated, it is surely beyond reasonable doubt that the fortress thus occupied was Mount Zion, the same height which still exists in the south-western corner of the area which came to be covered by Jerusalem. This seems to have been the only part that the Jebusites had fortified, and with the loss of this stronghold their hold of other parts of Jerusalem was lost. Henceforth, as a people, they disappear from Jerusalem, although individual Jebusites might still, like Araunah, hold patches of land in the neighbourhood (2 Sam. xxiv. 16). The captured fortress was turned by David into his royal residence. And seeing that a military stronghold was very inadequate for the purposes of a capital, he began, by the building of Millo, that extension of the city which was afterwards carried out by others on so large a scale.