Several pro-family groups are voicing their approval that the U.S. Supreme Court has decided it will hear highly controversial cases on gay marriage, OneNewsNow.com reports. The Supreme Court said Friday it would hear arguments on California's Proposition 8 -- the voter-approved state constitutional amendment defining marriage as between one man and one woman -- and on a provision of the federal Defense of Marriage Act (DOMA) that defines marriage the same way for the purposes of deciding who can receive a range of federal benefits. Jordan Lorence of Alliance Defending Freedom said, "We hope that they are going to uphold both of these and say that it is legitimate, constitutional policy to define marriage as one man and one woman, because marriage between a man and a woman is a universal good that diverse cultures and faiths have honored throughout the history of Western civilization." The National Organization for Marriage is also optimistic about the Supreme Court upholding Prop 8. "We believe [taking the case] is a strong signal that the court will reverse the lower courts and uphold Proposition 8," said NOM's chairman, John Eastman. The Supreme Court is likely to hear arguments in March and hand down decisions in June.