Reference: Baths
Easton
The use of the bath was very frequent among the Hebrews (Le 14:8; Nu 19:19, ect.). The high priest at his inauguration (Le 8:6), and on the day of atonement, was required to bathe himself (Le 16:4,24). The "pools" mentioned in Ne 3:15-16; 2Ki 20:20; Isa 22:11; Joh 9:7, were public bathing-places.
See Verses Found in Dictionary
He who is to be cleansed shall wash his clothes, shave off all his hair, and bathe himself in water; and he shall be clean. After that he shall come into the camp, but stay outside his tent seven days.
He shall put on the holy linen undergarment, and he shall have the linen breeches upon his body, and be girded with the linen girdle or sash, and with the linen turban or miter shall he be attired; these are the holy garments; he shall bathe his body in water and then put them on.
And he shall bathe his body with water in a sacred place and put on his garments, and come forth and offer his burnt offering and that of the people, and make atonement for himself and for them.
And the clean person shall sprinkle [the water for purification] upon the unclean person on the third day and on the seventh day, and on the seventh day the unclean man shall purify himself, and wash his clothes and bathe himself in water, and shall be clean at evening.
The Fountain Gate was repaired by Shallum son of Col-hozeh, ruler of the district of Mizpah. He rebuilt and covered it and set up its doors, its bolts, and its bars, and the wall of the Pool of Shelah (Siloam), by the King's Garden, as far as the stairs that go down [the eastern slope] from the [portion of Jerusalem known as] the City of David. After him Nehemiah [III] son of Azbuk, ruler of half the district of Beth-zur, repaired [the wall] to a point opposite the sepulchers of David, and to the artificial pool and the house of the guards.
You also made a reservoir between the two walls for the water of the Old Pool, but you did not look to the Maker of it, nor did you recognize Him Who planned it long ago.
And He said to him, Go, wash in the Pool of Siloam -- "which means Sent. So he went and washed, and came back seeing.