Pope Francis is once again warning the world against erecting barriers that keep us from our fellow humans, and once again, he did it behind his own massive walls.

United Press International reports:

Pope Francis on Saturday confirmed 17 new members of the College of Cardinals while pleading with the world to reject the hostilities being directed against immigrants and refugees.

During his homily at the ceremony, Francis implored the cardinals in attendance and millions of Catholics across the world to fight against the “growing animosity” between people of differing racial, ethnic, cultural and religious backgrounds.

“We live at a time in which polarization and exclusion are burgeoning and considered the only way to resolve conflicts,” he said.

Francis called out those who “raise walls, build barriers and label people.”

The pope gave his sermon at the Vatican City, which is protected by massive walls.

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During a speech before Congress in 2015, Pope Francis implored U.S. politicians to embrace migrants seeking to come into America.

“Our world is facing a refugee crisis of a magnitude not seen since the second World War,” the pope said, according to USA Today, including “thousands of persons (who) are led to travel north in search of a better life.

“We must not be taken aback by their numbers, but rather view them as persons, seeing their faces and listening to their stories, trying to respond as best we can to their situation.”

“To respond in a way which is always humane, just and fraternal. We need to avoid a common temptation nowadays: to discard whatever proves troublesome.”

How about practicing what you preach, Holy Father?