<human>:  What is the significance of the number 30 in the Bible?
<bot>: The number 30 is significant in the Bible as it is used to signify a period of dedication, testing, or judgement. This is evident in several examples from both the Old and New Testaments. For example, Moses stayed on the mountain for 40 days and nights, but only after spending 30 days on the mountain. Elsewhere in the Bible, there is the account of Jesus being tempted by the devil for 40 days and nights, but the period of fasting Jesus underwent lasted 30 days. The number 30 also appears at Judgement Day where it is said that all believers will stand before God and be judged for 30 days.