Gay groups are preparing to make their case against Viki Knox, a New Jersey high school teacher accused of writing anti-gay Facebook posts.

On Tuesday, the Human Rights Campaign (HRC), the nation's largest gay rights advocate, will present to school officials a petition signed by thousands of HRC members calling on the school board to take immediate action against Knox.

HRC Field Director Marty Rouse will deliver the petitions at a Union Township School Board meeting tonight.

Knox posted on Facebook a photo of a school display recognizing October as Lesbian, Gay, Bisexual and Transgender History month. It included photos of Virginia Woolf, Harvey Milk and Neil Patrick Harris.

The 49-year-old Knox, who teaches special education classes, wrote “homosexuality is a perverted spirit that has existed from the beginning of creation” and a “sin” that “breeds like cancer.” She defended her position in subsequent messages to Facebook users, saying that she believed being gay was “against the nature and character of God” and that the high school was “not the setting to promote, encourage, support and foster homosexuality.”

“Why parade your unnatural immoral behaviors before the rest of us? AND YOU ARE WRONG! I/WE DO NOT HAVE TO ACCEPT ANYTHING, ANYONE. ANY BEHAVIOR OR ANY CHOICES! I DO NOT HAVE TO TOLERATE ANYTHING OTHERS WISH TO DO. I DO HAVE TO LOVE AND SPEAK AND DO WHAT'S RIGHT!” Knox wrote.

Also protesting Knox is Garden State Equality, New Jersey's largest gay rights advocate.

“Teachers are supposed to be role models for our children, not hatemongers,” said Steve Goldstein, the group's chairman. “I don't see how this teacher could possibly be effective in implementing the state's new anti-bullying law, designed precisely to teach children that bullying, including cyber-bullying, is unacceptable.”

The New York Times reported that Knox earned $72,109 in 2010 and had worked in the district for 12 years.