"The New Testament (NT) recalls Jesus as having experienced and shown behavior closely resembling the DSM-IV-TR–defined phenomena of auditory hallucinations, visual hallucinations, delusions, referential thinking, paranoid-type thought content, and hyperreligiosity. He also did not appear to have signs or symptoms of disorganization, negative psychiatric symptoms, cognitive impairment, or debilitating mood disorder symptoms. NT accounts about Jesus mention no infirmity. In terms of potential causes of perceptual and behavioral changes, it might be asked whether starvation and metabolic derangements were present. The hallucinatory-like experiences that Jesus had in the desert while he fasted for 40 days (Luke 4:1–13) may have been induced by starvation and metabolic derangements. Arguing against these as explanations for all of his experiences would be that he had mystical or revelation experiences preceding his fasting in the desert and then during the period afterward. During these periods, there is no suggestion of starvation or metabolic derangement. If anything, the stories about Jesus and his followers suggest that they ate relatively well, as compared with the followers of his contemporary, John the Baptist (Luke 7:33–34)...

"There is a 5%–10% lifetime risk of suicide in persons with schizophrenia. Suicide is defined as a self-inflicted death with evidence of an intention to end one’s life. The NT recounts Jesus’ awareness that people intended to kill him and his taking steps to avoid peril until the time at which he permitted his apprehension. In advance, he explained to his followers the necessity of his death as prelude for his return (Matthew 16:21–28; Mark 8:31; John 16:16–28). If this occurred in the manner described, then Jesus appears to have deliberately placed himself in circumstances wherein he anticipated his execution. Although schizophrenia is associated with an increased risk of suicide, this would not be a typical case. The more common mood-disorder accompaniments of suicide, such as depression, hopelessness, and social isolation, were not present, but other risk factors, such as age and male gender, were present."

from "The Role of Psychotic Disorders in Religious History Considered" by Evan D. Murray, Miles G. Cunningham and Bruce H. Price