This restlessness, he continued, awakens a longing for God that exists in the hearts of all believers who know "that the Gospel is not an event of the past but of the present."

It is holy longing for God "that helps us keep alert in the face of every attempt to reduce and impoverish our life. A holy longing for God is the memory of faith, which rebels before all prophets of doom," the pope said.

Recalling the biblical figures of Simeon, the prodigal son, and Mary Magdalene, the pope said this longing for God "draws us out of our iron-clad isolation, which makes us think that nothing can change," and helps us seek Christ.

However, the figure of King Herod presents a different attitude of bewilderment and fear that, when confronted with something new, "closes in on itself and its own achievements, its knowledge, its successes."

The quest of the Magi led them first to Herod's palace that, although it befits the birth of king, is only a sign of "power, outward appearances and superiority. Idols that promise only sorrow and enslavement," he said.

"There, in the palace, they did not see the star guiding them to discover a God who wants to be loved. For only under the banner of freedom, not tyranny, is it possible to realize that the gaze of this unknown but desired king does not abase, enslave, or imprison us," the pope said.

Unlike the Magi, the pope added, Herod is unable to worship the newborn king because he was unwilling to change his way of thinking and "did not want to stop worshiping himself, believing that everything revolved around him."

Christians are called to imitate the wise men who, "weary of the Herods of their own day," set out in search of the promise of something new.

"The Magi were able to worship, because they had the courage to set out. And as they fell to their knees before the small, poor and vulnerable infant, the unexpected and unknown child of Bethlehem, they discovered the glory of God," the pope said.

After the Mass, Pope Francis greeted tens of thousands of people gathered in St. Peter's Square to celebrate the feast of the Epiphany.

A colorful parade led by the sounds of trumpets and drums, people dressed in traditional and festive clothing contributed to the cheerful atmosphere despite the chilly weather.

Explaining the significance of the Wise Men who presented their gifts to Christ after adoring him, the pope gave the crowds a gift: a small booklet of reflections on mercy.

The book, entitled "Icons of Mercy," presents "six Gospel episodes that recall the experience of people transformed by Jesus' love: the sinful woman, Zacchaeus, Matthew, the publican, the Samaritan, the good thief and the apostle Peter. Six icons of mercy," the papal almoner's office said.

Together with the homeless, poor men and women and refugees, religious men and women distributed the books to the crowd. As a thank you, Pope also offered more than 300 homeless men and women sandwiches and drinks.

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