Former President Donald Trump on Monday warned Christians that Vice President Kamala Harris would not leave them to their own devices should she win the White House in November and cautioned the group against sitting on the sidelines this election.

"You don't have the choice of sitting out this election, because if Kamala Harris gets four more years, the radical left is not going to leave Christians alone," Trump warned at a faith leaders meeting in Concord, N.C. "It's going to get worse and worse. You're going to suffer greatly."

"They will come after Christians all over the country," he went on. "Kamala Harris has vowed to abolish the filibuster, letting her pack the Supreme Court, and I even heard as many as 25 justices the Supreme Court with Marxist radicals, with people that we don't want on the Supreme Court to rewrite the Constitution and to overrule your values."

"On November 5, Christian voters need to turn out in the largest numbers ever," Trump insisted. "Do you know that if you did that because you have a reputation of not voting proportionately like you should?"

He then likened Christians to gun owners, another group known for disproportionately low voting.

"If they did [vote more], or if Christians did, nobody could ever beat us, nobody. So I hope that we're going to get numbers like we haven't seen you," Trump said.