1: Ezra 6:20 ~ cleansing of the priests for preparing the Passover Lamb
5: Job 17:9 ~ Job is recounting his condition and how he is despised by many. Yet he says those with clean hands will grow stronger.
6: Job 33:9 ~ Elihu repeats that he heard Job say he was pure and without sin; clean and free from guilt yet was experiencing trouble.
3: Job 37:21 ~ When the skies have been cleansed from any clouds; we can not look look directly at the sun. So, with God's purity.
7: Psalm 24:4 ~ Clean and pure before God brings blessing from Him.
3: Psalm 51: 7 ~ Asking God for cleansing.
3: Proverbs 20:9 ~ In our own strength - we cannot keep ourselves pure, clean or without sin; this can only come through God's cleansing.
1: Ecclesiastes 9:2 ~ Everyone (clean and unclean) shares one thing: we all will die.
8: Isaiah 1:16 ~ Our uncleanness hinders our coming to God - first: wash!
1: Isaiah 66:20 ~ Bringing of offerings in ceremonially clean vessels - am I a clean vessel when I worship?
9: Ezekiel 16:4 ~ Before we belong to God - we are unclean; He cleanses.
1: Ezekiel 22:6 ~ It was a sin when certain priests were not teaching a difference between clean and unclean. See Ezekiel 44:23.
3: Ezekiel 24:13 ~ An unwillingness to be cleansed led to God's wrath.
1 and 3: Ezekiel 36:25 ~ God will cleanse His people from idols and all impurities.
1: Ezekiel 44:23 ~ The priest's job is to teach the difference between clean and unclean; holy and common.
10: Amos 7:2 ~ Land stripped clean by locusts.
1: Zechariah 3:5 ~ Clean turban; a picture of our sin being removed and replaced with righteousness.
This completes the Old Testament list. Next time, we'll start the New Testament!