You can listen to the Gospel and Sunday homily here.
As the US Conference of Catholic Bishops said in their document “Brothers and Sisters to Us,” in 1979:
“Racism is a sin: a sin that divides the human family, blots out the image of God among specific members of that family, and violates the fundamental human dignity of those called to be children of the same Father. Racism is the sin that says some human beings are inherently superior and others essentially inferior because of races. It is the sin that makes racial characteristics the determining factor for the exercise of human rights. It mocks the words of Jesus: “Treat others the way you would have them treat you.” Indeed, racism is more than a disregard for the words of Jesus; it is a denial of the truth of the dignity of each human being revealed by the mystery of the Incarnation.”