Augustine of Hippo

No one accomplishes these ten commandments by their own strength, unless assisted by the grace of God. If therefore no one fulfills the law by their own strength, unless God aids with His Spirit; now recall how the Holy Spirit is commended in the sevenfold number, just as the holy prophet says, that the man be filled with the Spirit of God, of wisdom and understanding, of counsel and fortitude, of knowledge and piety, the Spirit of the fear of God. These seven operations commend the Holy Spirit in the sevenfold number, who, as if descending to us, begins with wisdom and ends with fear. But we, ascending, begin with fear and are perfected in wisdom. For the fear of the Lord is the beginning of wisdom.