The New John Gill Exposition of the Entire BibleNumbers 5:24
And he shall cause the woman to drink the bitter water that
causeth the curse…
. Having the curse imprecated upon herself, if
guilty, scraped into it; and this she was obliged to drink, whether she
would or not; so it is said, if the roll is blotted out, and she says I
am defiled, the water is poured out, and her offering is scattered in
the place of ashes; if the roll is blotted out, and she says I will not
drink, then force her, and make her drink whether she will or no F26:
and the water that causeth the curse shall enter into her, [and become]
produce the sad and bitter effects mentioned.
F26 Misnah, ut supra, (Sotah) c. 3. sect. 3.