2 Samuel 5:8

Whosoever getteth up to the gutter. The word rendered "gutter" occurs elsewhere only in Psalms 42:7 , where it is translated "waterspout." Josephus thinks that it was an underground passage or drain. Ewald argues that it was a precipice, and others that it was a dent or hollow in the rocky face of the ravine, which David had noticed and thought practicable. The view of Josephus, suggested to him probably by his knowledge of the way in which the site of Jerusalem is honeycombed by tunnels, has been wonderfully confirmed by the discoveries made by Sir C. Warren . At the northern end of the Pool of Siloam he found an arched passage gradually narrowing down from a considerable height, till finally there was a passage of only fourteen inches, and as there was a depth of ten inches of water, there were left but four inches of space for breathing. But through this his men struggled, and, at the end of four hours' labour, they reached the light of day at the spring called the Virgin's Fount. Beginning here on a subsequent day, they went along a passage sixty-seven feet in length, and came to a perpendicular shaft leading up through the solid stone of the hill; and, having scaled this, they next came upon a sloping passage, which finally conducted them to a spot on the hill of Ophel within the fortifications. Now, there are reasons for believing that this passage is older than the wall built by Solomon, and through it, or some such tunnel, Joab and a few men may have worked their way, and so have effected an entrance into the city, which otherwise was impregnable. It was probably the entrance near the Virgin's Fountain which they had observed, and David's words mean, "Whoever will undertake this dangerous enterprise, let him try this underground passage, and when he has entered the fortifications by its means, let him smite the lame and the blind, that are hated of David's soul," because of the beast of the Jebusites, that their cripples were a match for his heroes. It must be noticed, however, that the K'tib, or written text, has "who hate David's soul;" and as this is what the Jewish Massorites found in the manuscripts, it has more authority than their correction. These Jebusites had probably, in their boastful insult, spoken of David with contempt, and even said, like Goliath, that they would give his flesh to the vultures ( 1 Samuel 17:44 ). We learn from 1 Chronicles 11:6 that David promised the office of commander of the host to the man who undertook this exploit; and when Joab had volunteered and succeeded, he regained thereby the post which he had forfeited by the murder of Abner. The blind and the lame shall not some into the house. The proverb is one of contempt for these poor cripples, and forbids the exercise of hospitality to them. Such people, if they took to mendicancy, were to meet with refusal, though at their own homes they were fit objects of charity. This way of describing tramps as "the blind and lame" arose, we are here told, from this Jebusite taunt.