The Israelites grieved for Moses in the plains of Moab thirty days, until the time of weeping and mourning for Moses came to an end.

Genesis 50:3
taking the forty days required to complete the embalming. And the Egyptians mourned for him seventy days.

Numbers 20:29
When the whole congregation saw that Aaron had died, the entire house of Israel mourned for him thirty days.

Deuteronomy 34:7
Moses was a hundred and twenty years old when he died, yet his eyes were not weak, and his vitality had not diminished.

Deuteronomy 34:9
Now Joshua son of Nun was filled with the spirit of wisdom because Moses had laid his hands on him. So the Israelites obeyed him and did as the LORD had commanded Moses.

1 Samuel 25:1
When Samuel died, all Israel gathered to mourn for him; and they buried him at his home in Ramah. Then David set out and went down to the Wilderness of Paran.

2 Samuel 11:26
When Uriah's wife heard that her husband was dead, she mourned for 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.