This tradition of blessing the doorways (with blessed chalk) symbolizes the family's commitment to welcome Christ into their homes on a daily basis throughout the year.
(Chalk that is blessed should be buried after used and not used for ordinary purposes.)

The Epiphany Blessing of a Home
 

Leader:          Peace be to this house!

All:                 And all who enter!

Leader:          The Magi came from the East to worship the Lord Jesus.

All:                  And gave him precious gifts.
 

Leader:          They presented him with gold symbolic of his Kingship; frankincense to            proclaim him God; and myrrh for his burial.

Reader:         Reader reads Luke 1:46-55 (The Magnificat)

All:                 Our Father, who art in Heaven...

Leader:          Gracious God, you revealed your Son to the nations by the brilliant star.  Lead us to our eternal home through Jesus Christ our Lord.

All:                  Amen.
 

With chalk, the leader makes the inscription on the lintel (above the door).
AD + 21 + C + M + B + 21

Leader:           Eternal Father, bless this home. May it be a place of safety and hospitality. Grant that faith, charity and good health, triumph over evil.  May His Word be cherished and obeyed in this home.  We give praise and thanksgiving to you, and to your Son, and to the Holy Spirit.

All:                   Amen.