Gay rights groups on Friday cheered a federal judge's pending order forcing Ohio to recognize the out-of-state marriages of gay and lesbian couples.

U.S. District Judge Timothy Black said he would rule in favor of four plaintiff couples on or before Monday, April 14.

(Related: Federal judge says he'll order Ohio to recognize gay marriages.)

“Today's decision will make a real difference to legally married gay Ohio couples, affirming that their home state may not deny them and their families legal protections and the basic dignity of treating them as what they are: married,” Evan Wolfson, president of Freedom to Marry, said in an emailed statement. “Couples should not have to wonder whether they are still married or not depending on what state line they've crossed. This common-sense and constitutional ruling adds to the momentum across the country in favor of the freedom to marry.”

Chad Griffin, president of the Human Rights Campaign (HRC), the nation's largest LGBT rights advocate, said the ruling was another step toward nationwide marriage equality.

“Since the Supreme Court's landmark marriage equality ruling last June, not a single state marriage ban has survived a federal court challenge,” Griffin said. “It's only a matter of time before marriage equality is the law of the land in not just Ohio, but every corner of America.”