Genesis 50:3

Forty days {were required for it}, for thus [are] the days {required for} embalming. And the Egyptians wept for him seventy days.

Numbers 20:29

All the community saw that Aaron died; so all the house of Israel wept for Aaron thirty days.

Deuteronomy 34:8

And the {Israelites} wept [concerning] Moses thirty days; [finally] the days of weeping and mourning for Moses were completed.

Genesis 50:10

When they came to the threshing floor of Atad, which [was] beyond the Jordan, they lamented there with a very great and sorrowful wailing. And he made a mourning ceremony for his father seven days.

Deuteronomy 21:13

And she shall remove the clothing of her captivity from her, and she shall remain in your house, and she shall mourn her father and her mother {a full month}, and after this {you may have sex with her}, and you may marry her, and she may {become your wife}.

Treasury of Scripture Knowledge

Summary

And forty days were fulfilled for him; for so are fulfilled the days of those which are embalmed: and the Egyptians mourned for him threescore and ten days.

Bible References

Three-score

Numbers 20:29
All the community saw that Aaron died; so all the house of Israel wept for Aaron thirty days.
Deuteronomy 21:13
And she shall remove the clothing of her captivity from her, and she shall remain in your house, and she shall mourn her father and her mother {a full month}, and after this {you may have sex with her}, and you may marry her, and she may {become your wife}.
Deuteronomy 34:8
And the {Israelites} wept [concerning] Moses thirty days; [finally] the days of weeping and mourning for Moses were completed.