The Christian Flag was first conceived on September 26, 1897, at Brighton Chapel on Coney Island in Brooklyn, New York in the United States.
Since the Christian Flag was inspired by the flag of the United States, it takes its colors and overall design from the American flag.
The flag’s most conspicuous symbol is the Christian cross, the most universal symbol for Christianity. The red color is intended to represent the blood of Jesus as described in the story of his crucifixion. Christians believe that Jesus’ death and resurrection is the means God uses to save believers from their sins. The cross and blood have been used since earliest Christianity to symbolize salvation through Jesus; in the words of the Apostle Paul, “Through [Jesus] God reconciles himself to all things… making peace by the blood of the cross” (Colossians 1:20).
The white field draws on symbolism throughout the Bible equating white clothes with purity and forgiveness. People who have been “washed white as snow” in the Bible have been cleansed from their sins (Isaiah 1:18). In conventional vexillology a white flag is linked to surrender, a reference to the Biblical description Jesus’ non-violence and surrender to God’s will.
The blue square represents faithfulness, truth, and sincerity.
Since the flag is not tied to any specific religious denomination or church institution, it signifies the unity of all followers of Jesus Christ within the Kingdom of God despite historical, cultural, and dogmatic differences. Its simplicity makes it easily copied by any community of Christians.
The canton of this flag transgresses one of the traditional rules of flag design, which states that two colors (other than white or yellow) have to be separated by a metal (silver = white, or gold = yellow). The white field would also be advised against in conventional vexillology as it is easily mistaken for the white flag of surrender.