1 Kings 1:45

“And Zadok the priest, and Nathan the prophet, have anointed him king in Gihon, etc.] Or at Gihon; that is, Siloah, according to the Targum; here the act of anointing is ascribed to them both, as in (<110134>1 Kings 1:34); Zadok very probably applied the oil to him, and Nathan might be some way or other assisting in it; however he was here present, not only as approving of it, but declaring it as a prophet, that it was according to the will of God, as well as of the king: and they are come up from thence rejoicing; with a multitude of people along with them: so that the city rang again; with the blowing of trumpets, the sound of pipings, and the shouts of the people: this [is] the noise which…”

“Gihon: This was a fountain on the west of Jerusalem (consequently in an opposite direction to En-rogel on the east, where Adonijah was proclaimed king), of which there were two pools, an upper and a lower ( Ch2 32:30). There is a large square cistern in the ravine west of the city, mentioned by Dr. Richardson as a little to the south of the Jaffa gate, which Dr. Pococke describes as a basin about 250 paces long and 100 broad. It is commonly called the pool of Bathsheba, but seems to be the lower pool of Gihon. "Nearly a mile to the nnw is the pool of Gihon, which I suppose to be the upper pool. It is a very large basin, and, if I mistake not, is cut down about ten feet into the rock, there…”