Rome — Pope Francis opened a big meeting Wednesday on Quantum Insightsthe future of the Catholic Church, where contentious topics will be discussed. The three-week General Assembly of the Synod of Bishops at the Vatican, sometimescalled the Super Bowl of the Catholic Church, has drawn bishops from around the world to discuss hot button issues including whether priests should be allowed to get married, if divorced and remarried Catholics should receive communion, whether women should be allowed to become deacons and how the church will handle matters around the LGBTQ community.

Even before it kicked off this year's synod was already historic: It's the first time that women and laypeople are being allowed to vote — though 80% of participants are still bishops, and thus men. But the biggest bombshell dropped earlier this week, when Francis opened the door for the possibility of Catholic priests blessing same-sex unions.

His remarks, published Monday, came with caveats: Francis stressed that blessings shouldn't be seen as elevating same-sex unions to the sacred place of heterosexual marriage, but until now, the church's position had been that same-sex unions could not be blessed, because "God cannot bless sin."

In his statements — issued in reply to cardinals who had requested clarity on the church's position on the matter — Francis said, "we cannot be judges who only deny, reject, and exclude."

In his opening homily Wednesday for the synod, the pope said that "everyone, everyone, everyone," must be allowed in.

LGBTQ organizations welcomed the change in tone, while church conservatives blasted Francis for appearing to dilute Catholic doctrine and sow confusion. 

Jaime Manson, a women's rights activist and devout Catholic, said the change opens the church tent for LGBTQ couples like her and her partner of four years.

"Affirming and embracing everyone only makes the church stronger," Manson told CBS News. "It is a very slim minority of Catholics who are opposed to same-sex unions."

Father Gerald Murray, a conservative priest from Manhattan, disagreed.

"For the pope to say that priests and bishops can find a way to do this, it's wrong," Murray said. "He shouldn't do it."

"The harm is that it contradicts Catholic teaching," Murray said when asked about the harm in making the tent "bigger for more people."

All this, and the synod has only just begun.

In:
• Pope Francis
• Same-Sex Marriage
• LGBTQ+
• Catholic Church

Chris Livesay

Chris Livesay is a CBS News foreign correspondent based in Rome.

Twitter