The couple was beatified in 2008. They are believed to be the first parents of a saint to be beatified, highlighting the role parents play in their children's spiritual upbringing.
Seeing the elderly only as a burden "is ugly. It's a sin," Pope Francis said at his weekly general audience.
"We must reawaken our collective sense of gratitude, appreciation and hospitality, helping the elderly know they are a living part of their communities" and sources of wisdom for the younger generations, the 78-year-old pope said Wednesday at his weekly general audience.
When the Bible says, "though your sins be like scarlet" God will make them "white as snow," it exaggerates, just like God exaggerates in his willingness to forgive people, Pope Francis said.
"The Lord forgives generously," the pope said Tuesday during his early morning Mass. God never says, "'I will forgive you just this much, then we'll see about the rest.' No. The Lord always forgives everything."
"The Lord exaggerates. But it is the truth," the pope said at the Mass in the Domus Sanctae Marthae, where he lives.
Pope Francis on Tuesday approved a set of new legislative norms that formalize his moves to bring financial accountability and transparency to the Catholic church's central bureaucracy.
Pope Francis has appointed an auxiliary bishop known for his focus on addressing poverty and stressing the role of mercy in church teaching as the new bishop of San Diego.
The head of Vatican security said Islamic State militants have threatened the Vatican, but there are no indications of any planned attack.
The Vatican gendarmes, Swiss Guards and the Italian state police that patrol the perimeter of Vatican City State are always on high alert, said Domenico Giani, the commander of the gendarme and the pope's chief bodyguard.
Profit must never be a Christian's god, although it is one of the tools for measuring the effectiveness of business choices and the ability of a company to help workers feed their families, Pope Francis said.
"Money is the devil's dung," the pope said Saturday, quoting St. Francis of Assisi. "When money becomes an idol, it dictates people's choices."
As Pope Francis and Vatican officials try to revamp the Vatican's economic policies, differences of opinion are normal, but leaking documents is illegal, the Vatican spokesman said.
A cookbook featuring favorite dishes of the three most-recent popes and their elite military corps will be available this summer in English.
Buon Appetito, Swiss Guard was written by 24-year-old David Geisser, who had worked as a chef and published two popular cookbooks in his native Switzerland before joining the Swiss Guard nearly two years ago.
"Many people do not know about the Swiss Guard," said Geisser, whose commander conceived of the coffee-table-size book as a means to make the Guard better known.
As Catholics are encouraged to make going to confession a significant part of their lives during Lent, Pope Francis offered some quick tips to help people prepare for the sacrament of penance.
After a brief explanation of why people should go to confession -- "because we are all sinners" -- the pope listed 30 key questions to reflect on as part of making an examination of conscience and being able to "confess well."