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
So Moses brought Aaron and his sons near, and he washed them with water.
Then the one who presents himself for cleansing shall wash his garments, and he shall shave off all his hair, and he shall wash himself in the water; thus he shall be clean, and afterward he shall enter the camp, but he shall stay {outside his tent} [for] seven days.
He must put on {a holy linen tunic}, and linen undergarments must be on his body, and he must fasten [himself] with a linen sash, and he must wrap a linen turban around [his head]--they [are] holy garments, and he shall wash his body with water, then he shall put them on.
And he shall wash his body with water in a holy place, and he shall put on his garments and go out and {sacrifice} his burnt offering and the people's burnt offering, and so he shall make atonement for himself and for people.
The clean [person] will spatter the unclean on the third day and on the seventh day; and on the seventh day he will purify him, and he will wash his garments; he will bathe in the waters, and in the evening he will be clean.
Shallun son of Col-Hozeh, the commander of the district of Mizpah, repaired the Fountain Gate. He rebuilt it and covered it and erected its doors, its bolts, its bars, and [he built] the wall of the Pool of Shelah of the king's garden, right up to the steps going down from the city of David. After him Nehemiah son of Azbuk, commander of half of the district of Beth Zur, repaired up to [a point] opposite the burial sites of David, and up to the artificial pool and to the house of the mighty warriors.
And you made a reservoir between the walls for the waters of the old pool, but you did not look to its maker, and you did not see {the one who created it long ago}.
And he said to him, "Go, wash in the pool of Siloam" (which is translated "sent"). So he went and washed and came back seeing.