Revelation 20:1 And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.
2 And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years,
3 And cast him into the bottomless pit, and shut him up, and set a seal upon him, that he should deceive the nations no more, till the thousand years should be fulfilled: and after that he must be loosed a little season.
Are you not adding the words of verse 8 ” to gather them together to battle” to verse 3?
Did God have to bind satan in the bottomless pit, shut him up and put a seal on him just keep him from gathering nations to battle and nothing else? I don’t think so. It would appear to me the extreme measure to bind satan as described would prevent him from all mischief not just gathering nations to battle. It appears you are not willing to say satan is bound from all influence on this earth but the type of measures described sure gives the appearance satan when bound is out of commission.
God simply told satan not to take Job’s life , done no problem , Jesus simply said “get thee behind me” done no problem. I am not seeing what you claim in this passage. Just because when released we are told satan deceives the nations to battle does not mean that was all he was prevented from doing while bound. Satan has been deceiving nations since his fall and will continue until bound and then finally cast into the lake of fire.