(CNN) President Donald Trump will meet with Sister Norma Pimentel, a Catholic nun whose charity for new immigrants on the Texas-Mexico border has won praise from Pope Francis, at a roundtable discussion during the President's trip to the border on Thursday.

The roundtable discussion and border trip are part of Trump's push to convince Congress to fund his proposed $5.7 billion wall on the US-Mexico border.

A spokeswoman for Pimentel, fondly known as "the Pope's favorite nun," said the nun will focus her message on "caring for the person in front of you."

Pimentel, director of Catholic Charities for the Rio Grande Valley, shared a similar message in an op-ed on Wednesday.

"Every day of the year, from morning to evening, families coming over the border are welcomed at our center with smiles, a warm bowl of soup, a shower and a place to rest," she wrote.

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