Pleading for God's mercy is very different from pleading for mercy from Satan and his demons. You have no reason to plead for mercy from Satan and his demons, because if you are sealed and raptured into God's millennial kingdom, you already have won the battle. They are the losers of the battle, although they pretend not to have noticed. If you know that Jesus is Lord, you have no reason to plead for Satan's mercy. The Lord God Almighty is a God of victory.
The Lord God Almighty El Shaddai