Believers refuse to deny Jesus Christ
Matthew 10:32–33 (ASV 1901)
32Every one therefore who shall confess me before men, him will I also confess before my Father who is in heaven. 33But whosoever shall deny me before men, him will I also deny before my Father who is in heaven.
When some believers were sent to prison for "reeducation", they were subjected to extreme cruelty in an attempt to break them and have them deny Jesus. And while some did, for Zhang Rongliang and three others, Jesus was all they had. Denying the One who will never deny them was not an option.
Despite the severe and repeated beatings he had to endure from his own family, Ahmed resolved to not deny the Jesus. Even threats about death could not deter Ahmed; he was not afraid to die for the truth he had discovered.