Ash Wednesday
Ash Wednesday is not mentioned in the Bible but the custom of using ashes to
represent repentance is found in both the Old and New Testaments.
2 Samuel 13:19
Tamar put ashes on her head and tore her long-sleeved garment which was on her; and she put her hand on her head and went away, crying aloud as she went.
Esther 4:1
When Mordecai learned all that had been done, he tore his clothes, put on sackcloth and ashes, and went out into the midst of the city and wailed loudly and bitterly.
Daniel 9:3
So I gave my attention to the Lord God to seek Him by prayer and supplications, with fasting, sackcloth and ashes.
Matthew 11:21
Woe to you, Chorazin! Woe to you, Bethsaida! For if the miracles had occurred in Tyre and Sidon which occurred in you, they would have repented long ago in sackcloth and ashes.