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Home & Hearth

Chalking the Door

Also called Epiphany house blessing, 20+C+M+B, Christus mansionem benedicat, Dreikönigssegen, K+M+B

An Epiphany custom in which Christians write the year, crosses and the letters C, M and B in chalk above the front door. The letters stand for the Magi Caspar, Melchior and Balthazar and for the Latin blessing Christus mansionem benedicat, May Christ bless this house.

TraditionCatholic, Lutheran, Anglican and Methodist Epiphany custom
RegionGermany, Austria, Poland, Switzerland, Central Europe, and now the US and UK
EraMedieval Europe to present
Moon◐ Any moon
DayAny
ElementEarth
Difficulty●○○ Simple
Time15 minutes, on 6 January or during the Epiphany season

Tonight's moon is read when the page loads.

The working

  1. On Epiphany, 6 January, or any day in the Epiphany season, gather the household at the front door.
  2. Read the story of the Magi from Matthew 2, or say a short prayer asking God to bless all who live in or visit the home.
  3. Above the door, or on the lintel, write the first two digits of the year, then a cross, C, a cross, M, a cross, B, a cross, and the last two digits. For 2027 it reads 20 + C + M + B + 27.
  4. As each part is written, say the meaning: Caspar, Melchior and Balthazar, and Christus mansionem benedicat, May Christ bless this house.
  5. If you wish, walk through the rooms sprinkling holy water or carrying incense, as is done in Austria and Bavaria.
  6. Leave the chalk until it fades or until next Epiphany, when it is renewed as the house's blessing for the new year.

Take care: Use ordinary chalk, test it on a hidden spot of painted wood first, and work from a steady step stool. If you rent, ask before marking the door frame, or write the blessing on a card fixed above the door.

Versions across time and place

i

Sternsinger (star singers)

German, Austrian and Swiss Catholic custom · Medieval Epiphany plays to present

Between late December and 6 January, children dressed as the three kings carry a star from house to house, sing, collect money for children's charities, and chalk the blessing above each door. The custom grew out of medieval church plays about the Magi.

Uses: Star on a pole, Crowns and robes, Blessed chalk

Recorded in: Sternsinger (Wikipedia)
ii

K+M+B in Poland

Polish Catholic custom · Still observed

Polish families write K+M+B, from the Polish spellings of the kings' names, with the year on their doors on Epiphany, often with chalk blessed at Mass. Under Communist state atheism, chalked doors were a quiet sign of Christian identity.

Uses: Blessed chalk

Recorded in: Chalking the door (Wikipedia)
iii

Methodist and Anglican revival

English-speaking Protestant churches · Late 20th and 21st centuries

Many Protestant churches in the US and UK have taken up the custom, handing out chalk and a printed house blessing at Epiphany services so families can bless their homes and welcome guests as the Holy Family welcomed the Magi.

Uses: Chalk, Printed blessing

Recorded in: Chalking the door (Wikipedia), citing the United Methodist Discipleship Ministries

History

Chalking the door began in medieval Europe as part of Epiphany house blessings, when a priest visited homes with holy water and incense and marked the door. The letters C, M and B are the traditional initials of the Magi, names that appear in western tradition from the 6th century onward, and they also spell the Latin blessing Christus mansionem benedicat. The crosses stand for Christ, and the year places the blessing in time until the next Epiphany.

Christians compare it to the Israelites marking their doors at the first Passover, and see it as a sign of welcome like the Holy Family's welcome to the Magi. The custom stayed strong in Germany, Austria, Switzerland and Poland, where star singers chalk doors as they go, and in Communist Poland it became a sign of faith. In recent decades it has spread among Catholics, Lutherans, Anglicans and Methodists in North America and Britain.

Sources

  1. Chalking the door · Wikipedia, 2026
  2. Star singers (Sternsinger) · Wikipedia, 2026
  3. Twelfth Night (holiday) · Wikipedia, 2026

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