Cross reference
Genesis 50:3
3 And the forty days needed for making the body ready went by: and there was weeping for him among the Egyptians for seventy days.
Numbers 20:29
29 And when the people saw that Aaron was dead, all the children of Israel gave themselves up to weeping for him for thirty days.
Deuteronomy 34:8
8 For thirty days the children of Israel were weeping for Moses in the table-lands of Moab, till the days of weeping and sorrow for Moses were ended.
Genesis 50:10
10 And they came to the grain-floor of Atad on the other side of Jordan, and there they gave the last honours to Jacob, with great and bitter sorrow, weeping for their father for seven days.
Deuteronomy 21:13
13 And let her take off the dress in which she was made prisoner and go on living in your house and weeping for her father and mother for a full month: and after that you may go in to her and be her husband and she will be your wife.