the priest shall take holy water - Water from the laver, which was to be mixed with dust - an emblem of vileness and misery (Gen 3:14; Psa 22:15).
in an earthen vessel - This fragile ware was chosen because, after being used, it was broken in pieces (Lev 6:28; Lev 11:33). All the circumstances of this awful ceremony - her being placed with her face toward the ark - her uncovered head, a sign of her being deprived of the protection of her husband (1Co 11:7) - the bitter potion being put into her hands preparatory to an appeal to God - the solemn adjuration of the priest (Num 5:19-22), all were calculated in no common degree to excite and appall the imagination of a person conscious of guilt.