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
The person who is clean is to wash his clothes, shave all his hair, and bathe in water, after which he is to be declared clean. Then he can be brought back to the camp, but he is to remain outside his tent for seven days.
He is to wear a sacred linen tunic and linen undergarments that will cover his genitals. He is to clothe himself with a sash and wrap his head with a linen turban. Because they are sacred garments, he is to wash himself with water before putting them on."
He is to wash his body with water at the sacred place and put on his clothes. Then he is to go out and offer a whole burnt offering for himself and a whole burnt offering for the people, thereby making atonement on account of himself and on account of the people.
The clean person is to sprinkle the unclean person on the third day and seventh day and then he is to purify himself on the seventh day, wash his clothes, and bathe with water. He is to be considered clean at evening.
Colhozeh's son Shallum, ruling official of the Mizpah district, repaired the Fountain Gate, reconstructing it, installing its doors, its locks, and its security bars, as well as the Pool of Shelach near the royal garden as far as the stairway that descends from the City of David. Next to him Azbuk's son Nehemiah, ruling official of half of the Beth-zur district, carried on repairs as far as the tombs of David, then to the artificial pool that had been installed there, and then as far as the military barracks.
and built a reservoir between the walls to store water from the Old Pool. But you did not look at the One who did it, nor did you see the One who planned it long ago.
and told him, "Go and wash in the pool of Siloam" (which is translated "Sent One"). So he went off, washed, and came back seeing.