The Decalogue in the Church's Tradition
The Council of Trent teaches that the Ten Commandments are obligatory for Christians and that the justified man is still bound to keep them; The Second Vatican Council confirms: "The bishops, successors of the apostles, receive from the Lord . . . The mission of teaching all peoples, and of preaching the Gospel to every creature, so that all men may attain salvation through faith, Baptism and the observance of the
Source: Catechism of the Catholic Church (Vatican.va)