The crest, the official signature of The United Church of Canada, was originally designed by the Rev. Dr. Victor T. Mooney (a treasurer of the United Church), and officially adopted in 1944. It is a spiritual and historic reminder of our church.Its oval shape is derived from the outline of a fish, a symbol of identity by early Christians. The initials of the words "Jesus Christ, Son of God, Saviour" spell the Greek word for fish.
The crest is designed in the form of a St. Andrew's Cross with an insignia in each of the four corners. The "X" at the centre, the first letter of the Greek word for Christ, is a traditional symbol for Christ. In the four corners of the crest are symbols, three of which are particularly associated with the three communions—Congregational, Methodist, and Presbyterian—that united to form The United Church of Canada in 1925.
The Latin words ut omnes unum sint that surround the symbols on the crest mean "That all may be one" and are taken from John 17:21. They are a reminder that we are both a "united" and "uniting" church.
In 1980, a French translation of The United Church of Canada—L'Église Unie du Canada—was authorized by General Council to be added to the crest.
In August of 2012, at the 41st General Council, The United Church of Canada acknowledged the presence and spirituality of Aboriginal peoples in the United Church by revising the church's crest. The crest changes include incorporating the colours often associated with the Aboriginal Medicine Wheel. The Medicine Wheel, which reflects respect for diversity and interdependence, is often represented in the four traditional colours of yellow, red, black, and white, which incorporate important teachings from the four directions, the four stages of life, and the four seasons. The placement of these colours will vary according to the traditions of the nation. The Medicine Wheel teaches us to seek balance in the physical, mental, emotional, and spiritual aspects of the circle of life. The crest changes also include the addition of the Mohawk phrase "Akwe Nia'Tetewá:neren" [aw gway-- nyah day day waw-- nay renh], which means "All my relations."
This information is taken from the United Church of Canada website: