How is the strong man Bound?
Indirectly through the Cross of our Lord Jesus.
On the Cross the Lord has Crushed the head of Satan.
The Cross has dealt with Satan’s head, that is, it has Destroyed his power and influence.
But after our Lord Arose from the dead and Ascended back to Heaven, the Holy Spirit came to earth to Execute what the Lord had Accomplished on the Cross.
Hence Binding Satan is done through the Power of the Holy Spirit on the Basis of the Cross.
On our side, we can Bind Satan through the Prayer of Faith.
We should use Prayer to Bind the strong man.
First Bind and next to Spoil.