The Argentine pontiff addressed an estimated 15,000 members of the country's Roman Catholic minority, many of them converts or migrants, at a stadium in the southern Swedish town of Malmo, home to a large immigrant population.
"Meekness is a way of living and acting that draws us close to Jesus and to one another. It enables us to set aside everything that divides and estranges us, and to find ever new ways to advance along the path of unity," Pope Francis said, according to an official translation of his remarks.
A fervent advocate of Christian unity, Francis visited the southern city of Lund yesterday for an ecumenical service marking the start of a year of celebrations for the Reformation -- the dramatic 1517 event that created a Protestant branch of Christianity which rebelled against papal rule.
The event in Lund, where the Lutheran World Federation was founded in 1947, also marked 50 years of reconciliatory dialogue between the Catholic Church and Lutheranism, a tradition once fervently hostile to the authority and teachings of the Vatican.
More From This Section
Hailed as "a breath of fresh air" by Lutheran leaders, Francis raised hopes early in his papacy that he might steer the Church towards greater acceptance of homosexuality, and in June he said Christians "must apologise" to gays and lesbians for their past treatment.
Anders Arborelius, bishop of the Roman Catholic Church in Stockholm who himself converted from Lutheranism, said the pope's approach had been one of continuity, despite a "progressive" image compared to his predecessors.
"Pope Francis comes from another continent and has a different way of expressing things, but one cannot say that he has changed anything in the teachings," he told AFP.
A pioneer in women's and LGBT rights, it has been appointing female priests since 1960, a step the Catholic church is still reluctant to take.
"I think the Catholics have to change. We need women priests," Ingeborg Stenstrom, a Catholic and retired doctor from Germany who lives in Sweden, told AFP.