The man who started Open Doors ministry is challenging Christians to risk their lives to preach the gospel in the Muslim world.

Andrew van der Bijl is the 84-year-old missionary best known as Brother Andrew. He became famous for smuggling bibles into Communist countries during the Cold War.

Brother Andrew said recently that if missionaries are killed for sharing their faith, they "go to heaven anyway, so what's the problem?"

He praised ministries for their humanitarian work in closed countries, but he said a missionary's goal should always be to preach the gospel to the lost.

Otherwise, people can "go to hell with a full stomach," he said.

Open Doors is a non-denominational mission supporting persecuted Christians.