Leave it to the granddaughter of one of America’s great spiritual leaders to finally — finally! — put some perspective on one of the nation’s strangest political alliances.

Jerushah Armfield, whose grandfather is none other than the Rev. Billy Graham, said this on CNN: “In order to forgive somebody, that individual needs to repent and apologize. And I don’t think America has seen that from our President in any scenario.”

Why “forgive” in this case? Because the president of the United States uttered some despicable language when referring certain nations of the world. He called nations in Africa and Haiti “sh**hole countries,” a comment that has drawn international scorn.

Armfield, though, isn’t so alarmed that Donald Trump used that language, but is perplexed at how he dehumanized millions of people. And yet so many evangelical Christian leaders are willing to give the president a pass on that conduct. Why? Because they support his policies.

Armfield went on: “I understand a lot of evangelicals supporting him because of his policies,” she said. “I’d love to see a Christian leader come out and say that they support Trump for his policies, but that his behavior disgusts them, and he needs to clean up his act.”

His behavior hasn’t “disgusted” leaders, such as Armfield’s uncle, the Rev. Franklin Graham, Billy Graham’s son and one of Trump’s key evangelical supporters.

Tony Perkins, head of the Family Research Council, has said Trump deserves a “mulligan,” that his comments — and his admitted deeds — aren’t enough to repulse people of faith.

Armfield said more: “My president doesn’t have to be a Christian … I just don’t want him to be held up as the poster boy for Christian evangelicals because he doesn’t represent most of us.”

Yet, the president continues to bask in the support thrown his way by leaders of a movement who — I am utterly certain — wouldn’t tolerate a fraction of the hideous behavior from a politician whose policies they oppose.

Weird.