Prayers against not only one attack of the devil, but the persistent attacks, where you gain a victory in a specific possibly troublesome event , but the devil gets a "rematch" with another similar thing coming. .So for a prayer that includes protection against the "counterattacks" too.
O Holy Spirit, I humbly come to you who is always active and present within my home. You already know that I'm doing my essays through my Bible studies covering the nine areas of concern that you raised over a year. There are still areas of confusion in my mind, things that I do not understand...