Numbers 20:29 - And when all the congregation saw that Aaron was dead, they mourned for Aaron thirty days, even all the house of Israel. (Verses like Numbers 20:29)
Deuteronomy 34:8 - And the children of Israel wept for Moses in the plains of Moab thirty days: so the days of weeping and mourning for Moses were ended. (Verses like Deuteronomy 34:8)
Genesis 50:10 - And they came to the threshingfloor of Atad, which is beyond Jordan, and there they mourned with a great and very sore lamentation: and he made a mourning for his father seven days. (Verses like Genesis 50:10)
Deuteronomy 21:13 - And she shall put the raiment of her captivity from off her, and shall remain in thine house, and bewail her father and her mother a full month: and after that thou shalt go in unto her, and be her husband, and she shall be thy wife. (Verses like Deuteronomy 21:13)