According to Snopes[0] he claims he was urging Christians specifically (who don't usually vote in high numbers) to vote "just this time", then they wouldn't have to vote anymore for four more years, or something (which they wouldn't anyway...)
He was definitely addressing Christians (he repeats it several times) but at the end of the video he says "[...] we'll have it fixed so good you're not gonna have to vote", which does sound a bit suspect to me, even in context and taking into account the fact that he's often loose with his choice of words and phrasing.