and he will go out to mislead those nations in the four corners of the earth, Gog and Magog, to gather them together for the war. The number of these is as the sand of the sea.

Revelation 20:7-

23. What is indicated by the fact that the number of the rebels is “as the sand of the sea”?

²³ The number of those who join Satan in his revolt will be “as the sand of the sea.” How many is that? There is no foreordained number. (Compare Joshua 11:4; Judges 7:12.) The final total number of rebels will depend on how each individual reacts to Satan’s deceptive wiles. Doubtless, though, there will be a considerable number, since they will feel strong enough to overcome “the camp of the holy ones and the beloved city.”