Leviticus 15:5

15:5 Anyone who touches his bed must wash his clothes, bathe in water, and be unclean until evening.

Leviticus 15:8

15:8 If the man with a discharge spits on a person who is ceremonially clean, that person must wash his clothes, bathe in water, and be unclean until evening.

Psalms 26:6

26:6 I maintain a pure lifestyle,

so I can appear before your altar, O Lord,

James 4:8

4:8 Draw near to God and he will draw near to you. Cleanse your hands, you sinners, and make your hearts pure, you double-minded.