Biblical numerology relates to the study and meaning of individual numbers in Scripture.
Numbers in the Bible are sometimes used as symbols. The two most commonly repeated numbers in the Bible are 7 and 40.
The number 7 signifies completion or perfection. It is often called “God’s number” since he is the only one who is perfect and complete.
The number 40 is often understood as the “number of probation or trial.” The Israelites wandered for 40 years; Moses was on the mount for 40 days; 40 days were involved in the story of Jonah and Nineveh; Jesus was tempted for 40 days; there were 40 days between Jesus’ resurrection and ascension.
The number 3 is also thought to be the number of divine perfection: The Trinity consists of Father, Son, and Holy Spirit.
Another number repeated in the Bible is 4, which is the number of creation: North, South, East, West; four seasons.
The number 6 is thought to be the number of man: Man was created on the 6th day; man labours 6 days only. Another example of the Bible using a number to signify something is the number 666, the number of the Antichrist in Revelation chapter 13.