Gihon in the Bible

1. A river in Egypt

Genesis 2:13 And the name of the second river is Gihon: the same is it that compasseth the whole land of Ethiopia.

2. Pools near Jerusalem

1 Kings 1:33 The king also said unto them, Take with you the servants of your lord, and cause Solomon my son to ride upon mine own mule, and bring him down to Gihon:
1 Kings 1:38 So Zadok the priest, and Nathan the prophet, and Benaiah the son of Jehoiada, and the Cherethites, and the Pelethites, went down, and caused Solomon to ride upon king David's mule, and brought him to Gihon.
1 Kings 1:45 And Zadok the priest and Nathan the prophet have anointed him king in Gihon: and they are come up from thence rejoicing, so that the city rang again. This is the noise that ye have heard.

Hezekiah brings the waters of the upper pool by an aqueduct into the city of Jerusalem

2 Chronicles 32:4 So there was gathered much people together, who stopped all the fountains, and the brook that ran through the midst of the land, saying, Why should the kings of Assyria come, and find much water?
2 Chronicles 32:30 This same Hezekiah also stopped the upper watercourse of Gihon, and brought it straight down to the west side of the city of David. And Hezekiah prospered in all his works.
2 Chronicles 33:14 Now after this he built a wall without the city of David, on the west side of Gihon, in the valley, even to the entering in at the fish gate, and compassed about Ophel, and raised it up a very great height, and put captains of war in all the fenced cities of Judah.
Nehemiah 2:13-15 And I went out by night by the gate of the valley, even before the dragon well, and to the dung port, and viewed the walls of Jerusalem, which were broken down, and the gates thereof were consumed with fire. 14 Then I went on to the gate of the fountain, and to the king's pool: but there was no place for the beast that was under me to pass. 15 Then went I up in the night by the brook, and viewed the wall, and turned back, and entered by the gate of the valley, and so returned.
Nehemiah 3:13-16 The valley gate repaired Hanun, and the inhabitants of Zanoah; they built it, and set up the doors thereof, the locks thereof, and the bars thereof, and a thousand cubits on the wall unto the dung gate. 14 But the dung gate repaired Malchiah the son of Rechab, the ruler of part of Bethhaccerem; he built it, and set up the doors thereof, the locks thereof, and the bars thereof. 15 But the gate of the fountain repaired Shallun the son of Colhozeh, the ruler of part of Mizpah; he built it, and covered it, and set up the doors thereof, the locks thereof, and the bars thereof, and the wall of the pool of Siloah by the king's garden, and unto the stairs that go down from the city of David. 16 After him repaired Nehemiah the son of Azbuk, the ruler of the half part of Bethzur, unto the place over against the sepulchres of David, and to the pool that was made, and unto the house of the mighty.
Isaiah 7:3 Then said the LORD unto Isaiah, Go forth now to meet Ahaz, thou, and Shearjashub thy son, at the end of the conduit of the upper pool in the highway of the fuller's field;
Isaiah 22:9-11 Ye have seen also the breaches of the city of David, that they are many: and ye gathered together the waters of the lower pool. 10 And ye have numbered the houses of Jerusalem, and the houses have ye broken down to fortify the wall. 11 Ye made also a ditch between the two walls for the water of the old pool: but ye have not looked unto the maker thereof, neither had respect unto him that fashioned it long ago.
Isaiah 36:2 And the king of Assyria sent Rabshakeh from Lachish to Jerusalem unto king Hezekiah with a great army. And he stood by the conduit of the upper pool in the highway of the fuller's field.