The president of the nation's largest Protestant denomination is exhorting members to stand united against same-sex marriage and vows that he will never officiate a same-sex union.

Pastor Ronnie Floyd was speaking to delegates at the Southern Baptist Convention's annual meeting Tuesday in Columbus, Ohio. But he says his message is also for the U.S. Supreme Court — which is expected to rule soon on whether same-sex couples have a constitutional right to marry — and for all of America.

Floyd says he has compassion for people whom he described as struggling with same-sex attraction. But Floyd says God defined marriage in the Bible as a lifetime commitment between one man and one woman.

Floyd says delegates will vote on a marriage resolution later in the meeting.