The contents of the text, which now ranks as one of the most valuable found in the East, are not of historic importance. The six lines of beautifully chiselled letters record only the making of the tunnel, which seems to have been regarded as a triumph of Hebrew engineering skill. It was begun from both ends, and the workmen heard the sound of the picks of the other party in the bowels of the hill, and called to their fellows. Thus guided, they advanced and broke through; the two tunnels proving to be only a few feet out of line. No date, no royal name, or other means of ascertaining the age of the text exist; yet our knowledge is enough to fix very closely, from the forms of the letters, the century in which it must have been written. It is probably to this tunnel that the Bible refers in noting the water-works of King Hezekiah (2 Chron. xxxii. 30); and the text shows us that monumental writing was in use among the Hebrews about 700 B.C. The differences between these Hebrew letters and those used by the Phœnicians of the same age also show us that writing must have been familiar to the inhabitants of Jerusalem for many centuries before the time when this text was engraved; and it thus becomes the first monumental proof of the early civilisation of the Hebrews which has been drawn from their own records on the rock.
Being aware of the contents of the text, we determined to re-explore and survey the whole length of the tunnel, in order to see if any other texts could be found, and to discover if possible the exact place where the two parties of workmen met, on that day 2580 years before, when they heard each others’ voices through the rock. Followed by Lieutenant Mantell and Mr. G. Armstrong, I crawled over the mud and sharp pebbles for the whole distance, dragging with us a chain, and taking compass angles, which were entered in a wet note-book by the light of a candle often put out by the water. We also suffered from the bites of the leeches and from the want of air; but our chief danger was the sudden rise of the water, which might have caught us in that narrow part of the passage, where, crawling flat, we were hardly able to squeeze through and to keep our lights burning. We noted, however, two shafts to which we might retire if the water rose, and which were perhaps made in order to allow the workmen to stand upright at times and rest. It is almost impossible to suppose that the narrowest parts were excavated by grown men; at all events, they must have been narrower in the shoulders than the explorers; but I believe that boys were probably employed. In this narrow part no inscription could have been cut, nor did we find any tablets on the rock in other parts like that already noticed. On the first occasion, after five hours, we reached the Virgin’s Pool safely; but we found a second visit necessary, and in order to make the danger less, we determined to pass down the tunnel from the spring, where I stationed a servant to warn us if the water began to rise. Hardly had we got a hundred yards down the passage when we heard his shouts, and at once began to canter on all fours to the spring chamber over the pebbles and mud. We had crossed the pool with the water only up to our knees, but when we again reached it from the tunnel at the back, it was well up to the arm-pits; and hardly were we safe on the landing of the steps, when we heard the water gurgling in the tunnel, and knew that it must in the narrow part be full to the roof. In a short time the flow subsided, and we were able to go back safely, knowing that it would not rise again that day. We were astonished, however, on emerging at Siloam, to find the stars shining, for we had again spent five hours in the dark, with the mud, stones, and leeches, and considered ourselves lucky in escaping an attack of fever, which generally follows such exposure to wet and cold in Palestine. We were rewarded by finding the place where the two parties, working from either end of the tunnel, met nearly half-way.