² tn Heb “cleanse me with hyssop.” “Hyssop” was a small plant (see 1 Kgs 4:33) used to apply water (or blood) in purification rites (see Exod 12:22; Lev 14:4-6, 49-52; Num 19:6-18. The psalmist uses the language and imagery of such rites to describe spiritual cleansing through forgiveness.