Again, there is a fear which arises from treachery of reasoning and want of faith, and ignorance of the hour of death, as when we are at night affected by fear at some chance noise. This is unnatural fear, and may be thus defined: unnatural fear is an unexpected shrinking. This our Lord did not assume. Hence He never felt fear except in the hour of His passion, although He often experienced a feeling of shrinking in accordance with the dispensation. For He was not ignorant of the appointed time.