God wants us to have greater glory for him for our own salvation. More of the article from John Piper.goes like this:
The Glory of God and Christ shines more brightly when we are seen to be supremely satisfied in Christ in spite of Satan's torments, rather than if we had his torments removed and liked Jesus because of it.
It's when you love Jesus in spite of Satan's torments and through them that his glory shines most brightly, rather than when we have life made easier for us by Satan's removal and we like Jesus because of it.
The Glory of God and Christ shines more brightly when we are seen to be supremely satisfied in Christ in spite of Satan's torments, rather than if we had his torments removed and liked Jesus because of it.
It's when you love Jesus in spite of Satan's torments and through them that his glory shines most brightly, rather than when we have life made easier for us by Satan's removal and we like Jesus because of it.