The justice of God is not short-term or intermittent. Satan’s placement in the lake of fire knows no end; from here there is no escape, ever. This speaks to the infinite wrath of God as well as to his eternal justice on account of what Satan did to God’s honour and to God’s world. The crushing of the seed of the serpent is eternal and eternally painful.
10 and the devil who had deceived them was thrown into the lake of fire and sulfur where the beast and the false prophet were, and they will be tormented day and night forever and ever.