For the ancient Israelites, sacrificing animals on the altar of God was done out of devotion and a foundational commitment to the law. This ritual also served as the primary means of atoning for sins. This is the background for the conclusion reached by the scribe who wanted to know which is the greatest commandment. The scribe concludes that love of God and love of neighbor are worth more than all burnt offerings and sacrifices. Jesus affirms the validity of this conclusion when he says that, “the whole law and the prophets depend on these two commandments” (Mt 22:40).
Putting it this way, however, does not make love of God and love of neighbor two separate commandments, each to be carried out in one way or another. Rather, they are reciprocal commandments such that we love God by loving what he loves—his children and his creation. This reciprocity inspires St. John to claim that no one can say, “I love God, but hate his brother…for whoever does not love a brother whom he has seen cannot love God whom he has not seen. This is the commandment that we have from him. Whoever loves God must also love his brother” (1Jn 4:20-21). Loving God and loving our neighbor are two sides of the same coin.
Love binds us to each other and to God in a dynamic, interconnected relationship. The result is that whatever we do for the least of his children, we do to and for God himself. This is the point Jesus makes when he says that “As long as you did it for…the least of my children, you did it for me.” This is how Jesus equates Himself with each of us as the true object of love. He unites the “whole human race to Himself as a family through a supernatural solidarity” (Congar). From that point on, charity becomes the chief mark of discipleship. All shall know who the disciples of Jesus are by their love for one another (Jn 13:35).
The prophet Isaiah reveals a basic aspect of love for one another when he addresses the kind of fasting that God wants: “…releasing those bound unjustly, untying the thongs of the yoke; setting free the oppressed, breaking every yoke; sharing our bread with the hungry, sheltering the oppressed and the homeless; clothing the naked when we see them, and not turning our backs on our own" (Is 58:6-7). Isaiah makes plain that loving God means treating his children with justice, respect, and dignity. We open our hearts and our resources without judgment to those in need, especially our family members (Jl 2:12-13).
We are all equals in a sense because we all need love and concern. Being loved and loving others is how we survive and thrive in this world. We are therefore all the least of God’s children in one way or another, at one time or another. For that reason, love is the overarching moral principle and measure of all that we do to and for each other. In the words of St. Paul, we are equal “citizens with the holy ones and members of the same household of God” (Ep 2:19). This is why Jesus invites each of us to express love and compassion for all those in our lives, in our communities, and in the world, especially the least of his children.