It is also feared that Nadarkhani will be executed in retaliation as Iran endures crippling sanctions and international pressure in response to its nuclear agenda and rogue rhetoric. The number of executions in Iran has increased significantly in the last month.

"This is defiance," Sekulow said. "They want to say they will carry out what they say they will do."

The order to execute Nadarkhani came only days after lawmakers in Congress supported a resolution sponsored by Pennsylvania Rep. Joseph Pitts denouncing the apostasy charge and calling for his immediate release.

"Iran has become more isolated because of their drive for nuclear weapons, and the fundamentalist government has stepped up persecution of religious minorities to deflect criticism," Pitts, a Republican, told FoxNews.com. "The persecuted are their own citizens, whose only crime is practicing their faith."

The ACLJ has been a major driving force in keeping Nadarkhani's case in the international spotlight.