This fulfilling of God’s law in loving others is rendered not in our own strength but by the presence and power of the Holy Spirit (Rom. 8:4; Gal. 5:13–16, 22–23).

I am in total agreement with this thesis, after all it agrees completely with the role of the Spirit as listed in Jeremiah 31:33,

…I will put my law within them, and I will write it on their hearts….