In the fortieth year, on the first day of the eleventh month, Moses proclaimed to the Israelites all that the LORD had commanded him concerning them.

Numbers 33:38
At the LORD's command, Aaron the priest climbed Mount Hor and died there on the first day of the fifth month, in the fortieth year after the Israelites had come out of the land of Egypt.

Deuteronomy 4:1
Hear now, O Israel, the statutes and ordinances I am teaching you to follow, so that you may live and may enter and take possession of the land that the LORD, the God of your fathers, is giving you.

Deuteronomy 4:2
You must not add to or subtract from what I command you, so that you may keep the commandments of the LORD your God that I am giving you.

Joshua 4:19
On the tenth day of the first month the people went up from the Jordan and camped at Gilgal on the eastern border of Jericho.

And it came to pass in the fortieth year, in the eleventh month, on the first day of the month, that Moses spoke to the children of Israel, according to all that the LORD had given him in commandment to them;