More than 600 days have passed since Russian police in Orel, south of Moscow, arrested Dennis Christensen, a Danish national and self-employed carpenter and builder who was active in the local Jehovah’s Witnesses faith. He has been held in a detention center since the nighttime raid on his home on May 25, 2017. The charge against him is “organizing the activity of an extremist organization” — meaning, yes, Jehovah’s Witnesses. In a final plea at his trial last week, prosecutors asked the judge to sentence Mr. Christensen to 6½ years in prison. They have turned the worship of God into a crime.