NEW: Pope Leo XIV’s close ally Cardinal Robert McElroy received a standing ovation at the end of his homily, where he called on Catholics to take up civic action to help end the “immoral” war against Iran.

“When we leave this church tonight, we must move beyond prayer. As citizens and believers in this democracy that we cherish so deeply, we must advocate for peace with our representatives and leaders.

“It is not enough to say we have prayed. We must also act. For it is very possible that the negotiations will fail because of recalcitrance on both sides, and the president will move to re-enter this immoral war.

“At that critical juncture, as disciples of Jesus Christ called to be peacemakers in the world, we must answer vocally and in unison:

“No. Not in our name. Not at this moment. Not with our country.”