Whatever (Satan seeks to do, as he has done from the beginning, must ultimately tend to the divine glory.
A large part of the New Testament epistles owe their origin to the mischief Satan did in the Church. Examples are the epistles to the Corinthians, Thessalonians and Galatians. The mischief was permitted that the folly of these things might be made manifest, and that the full glory of the truth might be brought out. "These things have I written unto you concerning them that seduce you." They were persons of the highest pretensions that would seduce them.
The attack of the enemy brought out in the epistle to the Corinthians was the truth of the resurrection; in Thessalonians, the coming of the Lord; in Galatians, justification by faith. This was hardly the case in Philippians, because Paul was comforted by the love of those at Philippi.
Whatever Satan seeks to do, as he has done from the beginning, must ultimately tend to the divine glory, and the comfort and blessing of the souls of those who seek to serve God. The fall itself is the occasion of God's introducing greater blessing than before. Of course, man gets humbled in it, but God overrules it for greater good.