One of Donald Trump’s final pleas to Iowa voters is aimed directly at evangelical Christians.

In a campaign video released Saturday morning, Trump promises them he won’t let them down.

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“I really appreciate the support given to me by the evangelicals,” Trump says. “They’ve been incredible. Every poll says how well I’m doing with them.”

Holding up the Bible Trump says his mother gave to him, he tells voters, “My mother gave me this Bible, this very Bible many years ago.

“In fact it’s her writing, right here,” Trump says, showing the inscription page, “she wrote the name and my address and it’s just very special to me.

“Again, I want to thank the evangelicals,” Trump says, concluding, “I will never let you down.”

Earlier this week, Politico reported Trump is far-and-away the leading candidate among evangelical voters.

Among white evangelical Republican voters nationally, Trump earned the support of 37 percent, while Texas Sen. Ted Cruz, whose father is a pastor and has played a key role in recruiting faith leaders to support his son, is at 20 percent.

In the same survey conducted the previous week, Cruz registered 9 percentage points higher. Below the top two contenders, Ben Carson earned 11 percent among evangelicals, and Marco Rubio took 10 percent.

Trump was recently endorsed by Jerry Falwell, Jr., the president of Liberty University — the largest Christian college in the country.