Religious test to vote has been thwarted by FFRF [ffrf.org]

”“The Alabama secretary of state excludes Alabama citizens from being able to vote if they are unable to swear a religious oath,” stated the suit. “The secretary of state’s official policy is to hinder the registration of voters who are unable to swear ‘so help me God.’ This policy violates the rights of the plaintiffs and others under the First and 14th Amendments to the United States Constitution.”

"As part of a settlement, the secretary of state has amended all of the voter registration forms to allow voters to avoid swearing a religious oath. The new “mail in” form provides a check box that says, “OPTIONAL: Because of a sincerely held belief, I decline to include the final four words of the oath above.”