A St. Louis area business group has canceled a planned appearance by Dan Cathy, president of Chick-Fil-A, over the restaurant chain's recent support for an anti-gay marriage group.

The Clayton Chamber of Commerce announced Thursday their decision to rescind their invitation.

“We are a pro-diversity culture here and certainly don't want to offend anyone,” Ellen Gale, the head of the chamber, told STLToday.com, the website of the St. Louis Post-Dispatch. “We didn't know anything about this when he was booked.”

Gale was referring to the chicken restaurant's sponsorship of a marriage seminar closely associated with the anti-gay marriage group Pennsylvania Family Institute.

In a two-minute-twenty-seven-second video message released in January, Cathy denied that the company's donation was an endorsement of its values.

“Let me be clear, Chick-Fil-A serves all people and values all people,” Cathy said.

“Providing food to these events, or any event, is not an endorsement of the mission, political stance or motives of this or any other organization. Any suggestion otherwise is just inaccurate,” he added.

Cathy, however, altered course three weeks later after the New York Times wrote about the fallout from the incident.

“Chick-Fil-A has a long history of trying to encourage and strengthen marriages and families, both within our Chick-Fil-A system and with our customers,” Cathy said in a statement.

“Chick-Fil-A's Corporate Purpose is 'To glorify God by being a faithful steward of all that is entrusted to us, and to have a positive influence on all who come in contact with Chick-Fil-A.' As a result, we will not champion any political agendas on marriage and family. This decision has been made, and we understand the importance of it.”

But Cathy added that the company would “continue to offer resources to strengthen marriages and families.”

“To do anything different would be inconsistent with our purpose and belief in Biblical principles,” he said.