Revelation 20 - Matthew Henry's Concise Commentary on the Bible

Satan loosed, Gog and Magog.

While this world lasts, Satan's power in it will not be wholly destroyed, though it may be limited and lessened. No sooner is Satan let loose, than he again begins deceiving the nations, and stirring them up to make war with the saints and servants of God. It would be well if the servants and ministers of Christ were as active and persevering in doing good, as his enemies in doing mischief. God will fight this last and decisive battle for his people, that the victory may be complete,

and the glory be to himself. (Rev 20:11-15)