A hardware store owner in East Tennessee is celebrating a new Supreme Court ruling by putting up a sign that says "No Gays Allowed."

If that sounds familiar, it's because he's done it before and made national headlines for it three years ago.

WBIR reports Jeff Amyx first put the sign up on his Amyx Hardware & Roofing Supplies store in Grainger County, about an hour outside of Knoxville, back in 2015 after a Supreme Court ruling legalized same-sex marriage nationwide. Amyx, who is also a baptist minister, said gay and lesbian couples are against his religion.

According to USA Today, Amyx later removed the sign following backlash and replaced it with a sign saying "We reserve the right to refuse service to anyone who would violate our rights of freedom of speech & freedom of religion."

But on Monday, Amyx posted a sign saying "No Gays Allowed" at his store again.

He told WBIR that he was celebrating a "win" after the Supreme Court narrowly ruled in favor of a Colorado baker who refused to make a wedding cake for a same-sex couple. The SCOTUS ruling said the Colorado Civil Rights Commission violated Jack Phillips' rights under the First Amendment, though Colorado law prohibits discrimination on the basis of sexual orientation.

"I was shocked. I was really shocked because of the track record of our Supreme Court," Amyx told WBIR.

However, legal experts say the case doesn't mean businesses nationwide can refuse service to gay and lesbian people based on religious beliefs, as the ruling only specifically applied to the baker's case. The court held that the Colorado Civil Rights Commission showed hostility toward the baker based on his religious beliefs, but did not answer broader constitutional questions on religious liberty.

Amyx told WBIR that he worries a future, broader SCOTUS ruling will be different.

"Christianity is under attack. This is a great win, don't get me wrong, but this is not the end, this is just the beginning," he said. "Right now we're seeing a ray of sunshine. This is 'happy days' for Christians all over America, but dark days will come."