The First Angel’s Message in Scripture ~ Revelation 14: 6-7 …And I saw another angel fly in the middle of heaven, having the everlasting gospel to preach to them that dwell on the earth, and to every nation, and kindred, and tongue, and people, Saying with a loud voice, Fear God, and give glory to him; for the hour of his judgment is come: and worship him that made heaven, and earth, and the sea, and the fountains of waters.
To prepare a people to stand in the day of God, a great work of reform was to be accomplished. God saw that many of His professed people were not building for eternity, and in His mercy He was about to send a message of warning to arouse them from their stupor and lead them to make ready for the coming of the Lord.
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 first of these warnings announces the approaching judgment. The prophet beheld an angel flying “in the midst of heaven, having the everlasting gospel to preach unto them that dwell on the earth, and to every nation, and kindred, and tongue, and people, saying with a loud voice, Fear God, and give glory to Him; for the hour of His judgment is come: and worship Him that made heaven, and earth, and the sea, and the fountains of waters.” (Revelation 14: 6-7)
This message is declared to be a part of “the everlasting gospel.” The work of preaching the gospel has not been committed to angels, but has been entrusted to men. Holy angels have been employed in directing this work, they have in charge the great movements for the salvation of men; but the actual proclamation of the gospel is performed by the servants of Christ upon the earth.