While human agency must achieve moral action...
While human agency must achieve moral action, human existence is not defined by its agency, but its agency is defined by the human and its qualities of living. This is where the teachings of Jesus, specifically his love command, along with the prophets and apostles who embody the same command become indispensible.
Although the anti-philosophers Kierkegaard and Nietzsche, together with exegetes such as Albert Schweitzer of the early 20th century recognized the subjugation of human life to the falsehoods of a moral system that reduced the human being to a mere agent of action, it is always required that the words of revelation are restored to their authoritative position in philosophical reflection.
Great passages such as "God so loved the world," "you shall love the Lord your God with all your heart, soul, mind and strength," "the Sabbath was made for man and not man for the Sabbath," "love your neighbor as yourself," "you are my disciples if you have love for one another," "now abide faith, hope, love, but the greatest of these is love," are all indications of the centrality of love in ethical agency and the self-formation of the believer.
In the love command of scripture, which is said to sum up all commands, to embrace it and to advance it through obedient action is not merely to achieve correct legal behavior, but to achieve full humanness from the Creator / Redeemer that is God. Just as God's being cannot be reduced to his actions, neither can the human being. Actions serve to achieve relations functions which are greater than the discrete actions as such.
The bond of affection and relationship by which virtue enabling covenants and ultimately family and friendship with God and with others, is the incomparable goal of all human agency just as it is in all divine agency. Indeed, eschatological agency is but the fulfillment of divine love and human destiny in that love.
Understanding ethical agency through the love command of Jesus and of all revelation is the critical importance of development and maturation of the self in relation to God and to others. Obviously, the connection between the institutional concerns of the law in establishing and maintaining a society that embodies political, economic and criminal justice require a reasonable if very imperfect application of human judgment and action to others within a wider community.