"The greater our responsibility in serving the church, the more our hearts must expand according to the measure of the heart of Christ," he said Feb. 14 during the consistory, a prayer service during which he personally welcomed 19 churchmen into the College of Cardinals.

The 20th new cardinal, 95-year-old Colombian Cardinal Jose Pimiento Rodriguez, retired bishop of Manizales, was unable to attend the ceremony and was to receive his red biretta -- a three-cornered hat -- and his cardinal's ring in his homeland.

Retired Pope Benedict XVI attended the ceremony, sitting in the front row of St. Peter's Basilica alongside the already existing members of the College of Cardinals.

Pope Francis' meditation at the ceremony focused on the famous passage about love from St. Paul's First Letter to the Corinthians (13:4-7), which begins: "Love is patient, love is kind."

"All of us, myself first," should be guided by St. Paul's words, he said, because every Christian ministry "flows from charity, must be exercised in charity and is ordered toward charity."

The patience Christian love calls for, he said, is a call to catholicity. "It means being able to love without limits, but also to be faithful in particular situations and with practical gestures. It means loving what is great without neglecting what is small."

St. Paul says love is "not jealous or boastful" and truly being neither, the Pope said, "is surely a miracle of love since we humans -- all of us, at every stage of our lives -- are inclined to jealousy and pride since our nature is wounded by sin."

Not being "irritable or resentful" can be a challenge for a pastor, especially when dealing with other clerics, Pope Francis told the new cardinals.

"Charity alone frees us" from the temptation of snapping at others and, especially, from "the mortal danger of pent-up anger, of that smoldering anger which makes us brood over wrongs we have received," he said. "This is unacceptable in a man of the church."

St. Paul's statement that love rejoices over what is right, the Pope said, means "those called to the service of governance in the church need to have a strong sense of justice, so that any form of injustice becomes unacceptable, even those which might bring gain to himself or to the church."

The new cardinals and all Christians, he said, can find a synopsis of their calling in St. Paul's affirmation that love "bears all things, believes all things, hopes all things, endures all things."

Christians, the Pope said, should be "persons always ready to forgive; always ready to trust, because we are full of faith in God; always ready to inspire hope, because we ourselves are full of hope in God; persons ready to bear patiently every situation and each of our brothers and sisters, in union with Christ, who bore with love the burden of our sins."

The 20 new cardinals come from 18 nations, including three -- Cape Verde, Myanmar and Tonga -- that had never had a cardinal before. Only one of the cardinals works in the Roman Curia: French Cardinal Dominique Mamberti, head of the Apostolic Signature, the Vatican's highest court.

With the creation of the 20 new cardinals, the College of Cardinals expanded to 227 members, 125 of whom are under the age of 80 and therefore eligible to vote in a conclave to elect a new pope.

After the new cardinals professed their faith by reciting the Creed and formally swore fidelity and obedience to the Pope and his successors, they approached Pope Francis one by one to receive their biretta, their cardinal's ring and the assignment of a "titular" church in Rome, which makes them part of the Roman clergy.

In their first official act as cardinals, the new members of the college along with their confreres attested to their support for Pope Francis to proceed with the canonization of three women:

-- Blessed Jeanne Emilie De Villeneuve, the French founder of the Congregation of the Sisters of the Immaculate Conception.

-- Blessed Mary Alphonsine Danil Ghattas, the Jerusalem-born founder of the Dominican Sisters of the Holy Rosary of Jerusalem, the first Palestinian religious order.

-- Blessed Mariam Baouardy, a Melkite Catholic member of the Discalced Carmelites. She was born in 1846 in Ibillin, in the Galilee region of what is now Israel, and died in Bethlehem in 1878.

The Pope announced the canonization ceremony will be held May 17 and also will include the canonization of Italian Blessed Maria Cristina Brando, founder of the Oblation Sisters of the Blessed Sacrament.