Coming up tonight at 9, “Piers Morgan Live” welcomes Rick Warren, and a studio audience, for an hour-long interview dealing with a myriad of topics, including personal issues, politics, and the new Pope’s fresh perspective on homosexuality and the church.

Having welcomed the senior pastor of Saddleback Church in the past, Morgan is entirely familiar with Warren's stance against same-sex marriage. However, perhaps on the heels of a new papal institution, the host revisits the issue.

"Do you believe in equality for all,” Morgan asks, a question to which he quickly received a response in the affirmative.

“Then how can you as a Christian man, and a great man..." Morgan continues “...how can you espouse genuine equality if you don't allow gay people the same right to get married as straight people?”

For the well-known American evangelical Christian pastor, the argument isn't packaged in terms of an issue of equality, but rather as an interpretation of God’s scripture:

“I'm more against the redefinition of the term marriage than anything else.”

Their conversation on the topic continued as Morgan pressed on further until Pastor Warren finally concluded, “I fear the disapproval of God more than I fear your disapproval or the disapproval of society.”

Watch the above clip as Warren further explains his perspective, and for the full interview, tune in to CNN tonight at 9.

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