The "everlasting gospel" (Rev. 14:6-7) warns of coming judgment based on God’s power and majesty as Creator, and therefore man's responsibility to Him as Judge (Psa. 19:1-3, Psa. 96, Rom. 1:19-20). God will at last intervene to deliver a world fallen into Satan’s hands through man's sin. It demands that men recognize and glorify God as Creator. It is called "everlasting" because it is a gospel that transcends dispensations. The witness of God's deity and power in creation has been witnessed from the beginning of man's time on earth, but there will be a special emphasis or broadcast of this gospel before the Lord appears. It could be that the reason God will allow this is because of the vast confederacies of men from many places including heathen lands that will join themselves together in the battles of the indignation, and the mass death that will follow.1
Read Rev. 14:6-7.- Does the everlasting gospel require human preachers as do the gospel of the kingdom and the Christian gospel? Rev. 14:6 says that the everlasting gospel is something that an angel, flying in mid-heaven, will preach to the whole earth. Perhaps this means that the everlasting gospel, which has been preached since the fall of man, can be heard through providential means, as with other actions of angels in Revelation. For instance, Romans 1:20 makes it clear that the witness of creation is a revelation of God in a general sense; "from the world's creation the invisible things of him are perceived, being apprehended by the mind through the things that are made, both his eternal power and divinity". However, man rejected that witness, as with the other witnesses.