Isaiah 1:16 - Wash yourselves, make yourself clean. Put away the evil of your doings from before my eyes. Cease to do evil.
2 Corinthians 7:1 - Having therefore these promises, beloved, let us cleanse ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God.
Matthew 23:26 - You blind Pharisee, first clean the inside of the cup and of the platter, that its outside may become clean also.
Deuteronomy 23:12 - 14 - You shall have a place also outside of the camp where you go relieve yourself. You shall have a trowel among your weapons. It shall be, when you relieve yourself, you shall dig with it, and shall turn back and cover your excrement; for Yahweh your God walks in the midst of your camp, to deliver you, and to give up your enemies before you. Therefore your camp shall be holy, that he may not see an unclean thing in you, and turn away from you.
Ezekiel 36:25 - I will sprinkle clean water on you, and you shall be clean: from all your filthiness, and from all your idols, will I cleanse you.