Christian conservative Bryan Fischer has criticized the nomination of Eric Fanning to be secretary of the Army.

“The army of the United States has become the army of Sodom and Gomorrah. May God help us,” he tweeted on Friday along with a Washington Post story on President Barack Obama's nomination of Fanning.

If approved by the Senate, Fanning, 47, would become the first openly gay secretary of a military branch.

(Related: Obama nominates Eric Fanning, who is openly gay, to lead the Army.)

Fischer, a vocal opponent of LGBT rights, is the host of Focal Point on American Family Radio.

In response to the Supreme Court's ruling striking down state bans on gay marriage, Fischer told his radio listeners that “June 26, 2015 is a date which will live in infamy” because “on this day, the United States become Sodom and Gomorrah.”