Pope Francis lauded Jesus' humble beginning as a poor and vulnerable baby, marking Christmas in St Peter's Basilica.
"You are immense, and you made yourself small; you are rich, and you made yourself poor; you are all-powerful and you made yourself vulnerable," Francis said of Jesus as he delivered his homily in the basilica, packed with faithful.
Francis has dedicated much of his nine-month-old papacy to drawing attention to the plight of the poor, of children, and other vulnerable members of society.
He noted that the first to receive news of Jesus' birth were shepherds, who in society were considered "among the last, the outcast."
The bells of St Peter's rang as Francis, who turned 77 a week ago, walked briskly up the main aisle of the basilica for the ceremony. Keeping with the theme of humility he has set for his new papacy, Francis, instead of an aide, carried the statue of Jesus and kissed a knee of the figure of the newly born Jesus.