Dan Haseltine, front-man for the Christian band Jars of Clay, this week tweeted support for marriage equality.

“The treatment of people as less than human based on the color of skin is crazy... Or gender, or sexual orientation for that matter,” Haseltine, 41, tweeted Monday to his nearly 16,000 followers

“Not meaning to stir things up BUT … is there a non-speculative or non 'slippery slope' reason why gays shouldn't marry? I don't hear one,” he messaged. “I just don't see a negative effect to allowing gay marriage. No societal breakdown, no war on traditional marriage. ?? Anyone?”

Haseltine continued on Tuesday: “Interesting how Christianity was both a proponent of slavery and the force behind abolishing it.”

On Thursday, Christian conservative Michael Brown jumped into the fray, saying that Haseltine's actions “really boggles the mind.”

“Does this gifted artist not realize that the only reason we're talking about redefining marriage today is because we are well down that slope already?” Brown, a vocal opponent of gay rights, wrote in an op-ed published at CharismaNews.com.

“Redefining marriage declares a massive war on 'traditional marriage' and yes, it leads to all kinds of societal breakdown,” Brown argued. “Do you think that God's order for marriage and family, established plainly in the Word and recognized by virtually all societies in history, can be thrown aside without consequences?”

In tweets Thursday, Haseltine appeared to respond: “The bible may be infallible, but mans finite understanding and human, short-sighted interpretations are quiet fallible.”

“Those who have engaged their gay friends while disapproving of their lifestyle. Have you asked them if they feel loved or understood by you?” he added.

Haseltine, who is married and the father of two, attends an Anglican church in Nashville, Tennessee.