This warning is brought to view in Revelation 14. Here is a threefold message represented as proclaimed by heavenly beings and immediately followed by the coming of the Son of man to reap “the harvest of the earth.”
The Great Controversy, 311.
The angels are represented as flying in the midst of heaven, proclaiming to the world a message of warning, and having a direct bearing upon the people living in the last days of this earth’s history. No one hears the voice of these angels, for they are a symbol to represent the people of God who are working in harmony with the universe of heaven.
Life Sketches of Ellen G. White, 429.
The three angels’ messages are to be combined, giving their threefold light to the world. In the Revelation, John says, “I saw another angel come down from heaven, having great power; and the earth was lightened with his glory.” … This represents the giving of the last and threefold message of warning to the world.
SDA Bible Commentary 7:985.
Last modified: July 7, 2025