Deuteronomy 1:3
And it came to pass in the fortieth year, in the eleventh month, on the first of the month, that Moses spoke to the children of Israel, according to all that Jehovah had given him in command to them;
Numbers 33:38
And Aaron the priest went up mount Hor by the commandment of Jehovah, and died there, in the fortieth year after the children of Israel came out of the land of Egypt, in the fifth month, on the first of the month.
Numbers 20:1
And the children of Israel, the whole assembly, came into the wilderness of Zin, in the first month; and the people abode at Kadesh; and Miriam died there, and was buried there.
Deuteronomy 4:1-2
And now, Israel, hearken to the statutes and to the ordinances which I teach you, to do them, that ye may live, and go in and possess the land which Jehovah the God of your fathers giveth you.