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.”
And Moses did as the Lord commanded: and they went up into mount Hor in the sight of all the congregation.
And Moses stripped Aaron of his garments, and put them upon Eleazar his son; and Aaron died there in the top of the mount: and Moses and Eleazar came down from the mount.
And when all the congregation saw that Aaron was dead, they mourned for Aaron thirty days, even all the house of Israel.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“And Samuel died; and all the Israelites were gathered together, and lamented him, and buried him in his house at Ramah. And David arose, and went down to the wilderness of Paran.”
“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.”
“And devout men carried Stephen to his burial, and made great lamentation over him.”
“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.”
“And God called the dry land Earth; and the gathering together of the waters called he Seas: and God saw that it was good.”