en_tn/rev/20/07.md

at the four corners of the earth

See how you translated this in Revelation 7:1.

Gog and Magog

These are the names that the prophet Ezekiel used to represent far away countries. (See: rc://en/ta/man/translate/figs-explicit and rc://en/ta/man/translate/translate-names)

They will be as many as the sand of the sea

This emphasizes the extremely large number of soldiers in Satan's army. (See: rc://en/ta/man/translate/figs-simile)