STEPHANOPOULOS (voice-over): And downplaying what he calls the church's obsession with social issues.
STEPHANOPOULOS: He seems to want to rebalance in some ways. He says, of course, he holds to the church doctrine on things like abortion and gay marriage. But he says also, let's not just talk about this (INAUDIBLE).
DOLAN: Yes, you know what? John XXIII said, look, the teaching of the church is a timeless gift, you can't change it, it's ours, we inherited it, we're given it.
But the way we gift wrap it, the way we make it more attractive and more compelling to the world, that could always change and that's what Francis is saying.
ROBERTS: Pope Francis is emphasizing different parts of church doctrine. So, he's talking about income inequality and the need for the church to be the church for the poor.
STEPHANOPOULOS (voice-over): In his first exhortation outlining his vision for the church, Pope Francis took on capitalism, denouncing the idolatry of money and an economy that kills.
DOLAN: What he says is that the dollar is money, if the economy becomes our God, that's idolatry. There's only one God and money ain't it, OK? Money is morally neutral. It's how we use it that makes it sinful or good. And so he said use it for the good to support yourself and your family, to reinvest in society and to help those without. Don't let it become the be-all and end-all of life.
STEPHANOPOULOS: He's not the first pope to speak like this, but it's also drawn some criticism from some.
UNIDENTIFIED MALE: This is just pure Marxism coming out of the mouth of the pope. There's no such unfettered capitalism that doesn't exist anywhere.
DOLAN: You get it from both sides. And sometimes, criticism is good, Jesus said, be careful if the world is only saying good things about you. So Pope Francis probably shrugs and says, well, it's good that I'm upsetting some people. It's good that people are taking me seriously. And he'll get it again. He knows that.
STEPHANOPOULOS (voice-over): Not shying away, responding to critics, challenging them with questions of his own.
ARCHBISHOP JOSEPH KURTZ, U.S. CONFERENCE OF CATHOLIC BISHOPS: He's not asking us to change the teachings of our church. He takes very seriously his responsibility to pass on the sacred traditions. But he is saying let's not get so pigeonholed that we're involved in a kind of an intellectual debate.
STEPHANOPOULOS (voice-over): Archbishop Joseph Kurtz is the new head of U.S. Bishops.
KURTZ: He's giving us a new zeal, he's giving us new expressions and a new method. He's saying the same time-honored, beautiful message of Christ, but in a way that's really touching hearts.
STEPHANOPOULOS (voice-over): An age-old message delivered in a modern way, by "Time" magazine's Person of the Year.
DOLAN: He said, "'Time' magazine? I'm more worried about timeless things." OK? So that's the way he is. He shrugs and says, well, thanks. Who cares?
UNIDENTIFIED MALE (voice-over): He doesn't want to be the center of attention. He wants others to be the center. And gosh, that's a great Francis effect, isn't it?
STEPHANOPOULOS: And when the pope said those words, "Who am I to judge when asked about gay priests?" It really signaled a sea change for many in the church's attitude toward acceptance of gays. (INAUDIBLE) landmark year for gay rights, so much change, kept a Supreme Court's historic sanctioning of gay marriage.
Here's ABC's David Wright.