(CNN) After it published an op-ed calling for President Donald Trump's removal for office, Christianity Today says it's seen a boost in readership.

Mark Galli, the editor-in-chief of the leading evangelical publication, made the remarks during an interview with the Rev. Al Sharpton on MSNBC on Sunday.

The editorial, he said, divided readers -- but support outweighed criticism.

"Although we've lost hundreds of subscribers, we've gained three times as many subscribers," he told Sharpton.

Galli penned the condemnatory editorial for the magazine last week. In it, he criticized what he called Trump's "grossly immoral character" and urged evangelicals to stop supporting him.

"We believe the impeachment hearings have made it absolutely clear, in a way the Mueller investigation did not, that President Trump has abused his authority for personal gain and betrayed his constitutional oath," he wrote in the op-ed . "The impeachment hearings have illuminated the president's moral deficiencies for all to see."

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