But deliver us from all evil:

This last petition to our Father is included in the prayer Jesus, and we pray in communion with the Church for the deliverance of the whole human family from the person of Satan ,the Evil One, angel  who opposes God. When we ask to be delivered from the Evil One, we pray as well to be freed from all evils, present , past, and future, of which he is the author or instigator. Along with deliverance from the evils that overwhelm  humanity, the Church  implores the precious gift of peace and the grace of perseverance in expectation of Christ's return.

By the final "Amen," we express our "fiat" concerning the seven petitions : "So be it. "
[See CCC 2803-2954, 2865 ]