In a Portland Press Herald op-ed, Barney Frank, a former congressman from Massachusetts, predicted that opponents of gay marriage will get over it within “a few years, if that long.”

Frank has the distinction of being the first openly gay member of Congress and the first to enter a marriage with a member of the same sex. He married Jim Ready in 2012.

He is the author of Frank: A Life in Politics from the Great Society to Same-Sex Marriage.

“In the spirit of conciliation, I want to offer reassurance to those who reacted to the Supreme Court’s same-sex marriage decision with a mix of outrage and horror: It will have no effect on how you live your lives,” Frank wrote.

“This is not a prediction of what will happen in the future. It is a distillation of the nearly 12 years of experience in Massachusetts since our Supreme Judicial Court issued the forerunner of this ruling in 2003. No member of the clergy has had to participate in any marriage she or he found sinful, immoral or even offensive. No house of worship has been forced to open any of its premises – sanctuaries, function halls or, as much as I can ascertain, even parking lots – for ceremonies that contravene their religious tenets.”

“But we should not rely on history alone,” he added later. “These scare tactics were always implausible, and their repetition – for example, by as responsible a figure as Chief Justice John Roberts in his dissent – calls for an analytical deconstruction as well.”

“Given his implicit recognition that the rules of marriage have changed drastically from society to society and from era to era, what is the basis for thinking that this change will unsettle the institution?”

Frank concluded with “a very confident prediction.”

“Within a very few years, if that long, the people now obsessing over the damage they expect from the Supreme Court's decision will be in severe danger of getting over it.”