The move seems to be an attempt by Francis to clear up any ambiguity about the pontiff's power to replace prelates around the world.
Pope Francis said the church's marriage annulment process should be more efficient and perhaps even free of charge, and he decried any attempts to exploit it for profit.
"Some procedures are so long and so burdensome, they don't favor [justice], and people give up," the pope said. "Mother church should do justice and say: 'Yes, it's true, your marriage is null. No, your marriage is valid.' But justice means saying so. That way, they can move on without this doubt, this darkness in their soul."
Archbishop Diarmuid Martin of Dublin decried comments from clerics and others who said Pope Francis caused confusion in his calls for an open discussion on how the church should reach out to those who are marginalized, hurt and wounded in their lives during the recent Synod of Bishops on the family.
Martin said he was "quite surprised at the remarks of some commentators within church circles about the recent Synod of Bishops, often making accusations of confusion where such confusion did not exist and so actually fomenting confusion."
The Vatican will host religious leaders from across the religious spectrum for a conference where they are expected to defend traditional marriage.
Marking a significant step in an extensive process of the reform of the Legionaries of Christ, the Vatican approved the congregation's amended constitutions.
Analysis: Since the end of the synod, news outlets have portrayed the outcome as a "setback" or "loss" for Pope Francis -- even a "rebuke" to him.
The daylong gathering dissected the theological and pastoral implications and challenges of the still-emerging Pope Francis pontificate.
"Many have expressed their concerns to me. ... They are feeling a bit seasick because they feel the church's ship has lost its way."
Faith and Justice: During the synod, the bishops struggled to find a way that the church could be a loving mother while still being a clear teacher
NCR Today: The final document of the Synod of Bishops on the family has finally been translated into English and posted to the Vatican's website.