Numbers 20:29

29And when all the congregation saw that Aaron had perished, aall the house of Israel wept for Aaron thirty days.

Deuteronomy 21:13

13And she shall take off the clothes in which she was captured and shall remain in your house and blament her father and her mother a full month. After that you may go in to her and be her husband, and she shall be your wife.

Deuteronomy 34:8

8And the people of Israel cwept for Moses in the plains of Moab thirty days. Then the days of weeping and mourning for Moses were ended.

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