Augustine of Hippo
He declares that they will accomplish even greater deeds than He Himself performs, yet it is through Him, not by their own power. For it is to Him that it is proclaimed: 'I will love Thee, O Lord, my strength!' (cf. Ps. 17:2).
Christ and the Church, which together form the complete Christ, Head and Body, declare, I will love Thee, O Lord, my strength (Psalm 17:1). I will love Thee, O Lord, through whom I find my strength.
Exercise caution so that the confidence in your own righteousness does not lead to your downfall, for you are but a mortal, and cursed is anyone who places his trust in humanity. Instead, place your complete trust in the Lord your God, and He will be the source of your strength upon whom you can depend, devout and grateful. With humility and faith, you should declare to Him, ‘I love You, O Lord, my strength.’ The love of God, which is perfect and dispels fear, is not instilled in us through our own human abilities, but, as the Apostle states, is bestowed upon us by the Holy Spirit.