1 Chronicles 24

Thus they were divided by lot, one group as another, for there were officials of the sanctuary and officials of the house of God, from the sons of Eleazar and from the sons of Ithamar. v.5

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This chapter gives us key to Zecharias the father of John the Baptist.  In Luke chapter one we read, "There was in the days of Herod, the king of Judea, a certain priest named Zacharias, of the division of Abijah. His wife was of the daughters of Aaron, and her name was Elizabeth" (v.5); both Zecharias and his wife Elizabeth were of the high priesthood through Aaron.  We read still of the lot division of the priests taking place in Zecharias' day still: "So it was, that while he was serving as priest before God in the order of his division,  according to the custom of the priesthood, his lot fell to burn incense when he went into the temple of the Lord" (vv.8-9).  Each division would serve one week and then go out.  The method using the lot was to take away any jealousy and the right to perform particular duties and also "to prevent envy, strife, and contention about precedence" as Matthew Poole's Commentary notes.

Where do you wish a lot was used to help take away any contentions or jealousy?  Work?  Home?  Gatherings with friends and family?  God is the God of order in all things!