Televangelist Pat Roberson, the host of Christian Broadcasting Network's The 700 Club, is stepping up his anti-gay rhetoric.

On Thursday, the day after Maine became the fifth state to legalize gay marriage, Robertson called allowing gay and lesbian couples to marry “the beginning in a long downward slide” to legalized child molestation.

“We haven't taken this to its ultimate conclusion,” Robertson told viewers.

“How can we rule that polygamy is illegal when you say that homosexual marriage is legal. … And what bout bestiality and ultimately what about child molestation and pedophilia? … You mark my words, this is just the beginning in a long downward slide in relation to all the things that we consider to be abhorrent.”

Last month, after Congress approved a hate crimes bill that protects gay, lesbian and transgender persons against violent bias-related crimes, Robertson suggested the bill would protect someone who “likes to have sex with ducks” or “little boys.”

“You got somebody, he's really weird, and his sexual orientation is that he likes to have sex with ducks. Is he protected under hate crime? Is he protected if he likes to have sex with little boys?” Robertson asked.

Robertson's anti-gay attacks come in the wake of a wave of victories for gay advocates, including the legalization of gay marriage in Iowa, Vermont and Maine, and a recent upturn of public support for gay and lesbian rights.