Best to read the article before judging. I think his preaching was in word and deed before being transferred to a receptive mix. "But the initial curiosity the ISIS terrorists had toward their new devoutly Christian cellmate quickly gave way to brutality and beatings.“Then started the physical attacks – fists to my face, kicking my legs with their shoes still on. They used a wooden stick to beat me and experimented with other modes of torture.” Christian leader Petr Jasek was held for 445 days in Sudan, spending a large portion in a cell with ISIS operatives At one point, Jasek’s body was forced into such arduous positions for extended periods that he was not even able to walk for days on end..."
Many "Christians" are not manifest to be so.
Good advice, which is why I did exactly that before posting. As Paul Harvey would say here is the rest of the story: And although Jasek knew deep down that Christians across the world were praying for him and diplomats spanning Europe and beyond were advocating for his release, the ruling gave him a new lease on life. “Once, sometimes twice a week, I would preach to the hopeless, the desperate, and the forgotten prisoners. I knew we were being monitored, but I had nothing left to lose. I had already been sentenced to life imprisonment so there could be no more penalty on me,” Jasek said. “I saw the way their lives transformed through the gospel, and that was the most important mission of my life.”
“I was sentenced to life imprisonment.”
...and now you know the rest of the story.