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
And he that is to be purified shall wash his clothes and shave off all his hair and wash himself with water, and he shall be clean; and after that he shall come into the camp and shall dwell outside of his tent seven days.
He shall put on the holy linen coat, and he shall have the linen underwear upon his flesh and shall be girded with a linen girdle, and with the linen mitre shall he cover himself. These are holy garments; and he shall wash his flesh with water and put them on.
Then he shall wash his flesh with water in the holy place and put on his garments and come forth after that and make his burnt offering and the burnt offering of the people and make reconciliation for himself and for the people.
And the clean person shall sprinkle upon the unclean on the third day and on the seventh day; and when he has removed the sin from them the seventh day, he shall then wash his clothes and bathe himself in water and shall be clean in the evening.
Shallun, the son of Colhozeh, the prince of the region of Mizpah, restored the gate of the fountain; he built it, covered it, and set up its doors, its locks, and its bars, and the wall of the pool of Siloah of the king's garden, unto the stairs that go down from the city of David. After him restored Nehemiah, the son of Azbuk, the prince of half the region 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.
Ye also made a moat between the two walls with the water of the old pool, but ye have not looked unto the maker thereof, nor had respect unto him that fashioned it long ago.
and said unto him, Go, wash in the pool of Siloam (which is by interpretation, Sent). Then he went and washed and came back seeing.