Cross reference
Genesis 50:3
3 Forty days were fulfilled for him, for that is how many the days it takes to embalm. The Egyptians wept for him for seventy days.
Numbers 20:29
29 When all the congregation saw that Aaron was dead, they wept for Aaron thirty days, even all the house of Israel.
Deuteronomy 34:8
8 The children of Israel wept for Moses in the plains of Moab thirty days: so the days of weeping in the mourning for Moses were ended.
Genesis 50:10
10 They came to the threshing floor of Atad, which is beyond the Jordan, and there they lamented with a very great and sore lamentation. He mourned for his father seven days.
Deuteronomy 21:13
13 and she shall put the clothing of her captivity from off her, and shall remain in your house, and bewail her father and her mother a full month: and after that you shall go in to her, and be her husband, and she shall be your wife.