WASHINGTON (AP) — Fears that the Supreme Court will establish same-sex marriage nationwide have loomed over the National Day of Prayer observance in Washington.

In one of many prayers at the four-hour gathering on Capitol Hill, Korean American Pastor Paul Han prayed that the justices will allow states to ban gay marriage.

Evangelical broadcaster Dr. James Dobson said if the court doesn't, it will be "the death knell of religious liberty in America." He said churches might lose their tax exempt status if biblical standards of marriage are still taught from pulpits or in Sunday school.

Two Republican presidential candidates, Texas Sen. Ted Cruz and Dr. Ben Carson, were among hundreds attending Thursday's observance.

Carson spoke of the power of prayer in his life, and Senate Chaplain Barry Black said prayer should be as constant and natural as breathing.

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