WASHINGTON (AP) — Washington National Cathedral plans to hold a special prayer service for gay, lesbian, bisexual and transgender families on the day when the Supreme Court may rule on the legality of gay marriage.

The cathedral scheduled the service for Wednesday evening at 7 p.m. to celebrate, grieve or anticipate the Supreme Court’s ruling.

READ MORE: Police Investigating After 34-Year-Old Man Shot In SW Baltimore

In a statement, the cathedral’s dean, the Rev. Gary Hall, says having the freedom to marry you love is not only a constitutional right but also a moral right. Hall announced in January that the cathedral would begin performing same-sex marriages.

READ MORE: WATCH LIVE: Gov. Larry Hogan To Give Press Conference At 11 a.m.

At issue is the constitutionality of the federal Defense of Marriage Act and California’s ban on gay marriage.

The cathedral says it will continue to advocate for same-sex marriage regardless of what the court decides.

MORE NEWS: Troopers Responded To 15 DUI-Related Crashes Over The Weekend, Maryland State Police Says

(Copyright 2013 by The Associated Press. All Rights Reserved.)