Tonight let us look at the shepherds. What kind of people were they? In the world of their time, shepherds were looked down upon; they were considered untrustworthy and not admitted as witnesses in court. But really, who were they? To be sure, they were not great saints, if by that word we mean people of heroic virtue. They were simple souls. The Gospel sheds light on one feature which later on, in the words of Jesus, would take on particular importance: they were people who were watchful.
Pope Emeritus Benedict XVI

The Marvelous Power Of The Cross | Pope Leo The Great
Our understanding, which is enlightened by the Spirit of truth, should receive with purity and freedom of heart the glory of the cross as it shines in heaven and on earth. It should see with inner vision the meaning of the Lord's words when he spoke of the imminence...