President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE reportedly heard a sermon on hate speech when he attended a St. Patrick's Day church service in Washington, D.C., on Sunday.

The Rev. W. Bruce McPherson urged people to condemn hate speech in his sermon at the historic St. John's Episcopal Church just days after a gunman opened fire at a pair of New Zealand mosques, killing at least 50, according to CNN.

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In the 15-minute sermon, McPherson called on individuals to denounce hate speech because it is a "sin against Gospel," CNN reported

"What can we do? Well, perhaps we're called whenever we overhear or oversee hateful slurs against other people, perhaps we need the holy courage to call them out, because that's just not us," McPherson said in the sermon, the network noted.

"It takes courage I know," he added. "But it's up to us. Courage is contagious. And acting courageously especially in light of some kind of speech like that catches on and spreads."

CNN added that McPherson also used the sermon to also highlight certain aspects of Islam, such as its daily prayer ritual, that he said prompted "holy envy."

Trump attended the 11 a.m. service with his wife, first lady Melania Trump. The president rarely attends church services, though he has done so in the past to mark holidays such as Christmas and Easter.