Deuteronomy 9:11
And it came to pass at the end of forty days and forty nights, that the LORD gave me the two tables of stone, even the tables of the covenant. And it came to pass at the end of forty days and forty nights, that the LORD gave me the two tables of stone, even the tables of the covenant.
At the end of forty days and forty nights on the mount, Moses received from the Lord the two tables of stone, even the tables of the covenant. Throughout those forty days and forty nights he ate no bread and drank no water. The tables were written with the finger of God with all the words the Lord had spoken to the people on the mount out of the midst of the fire in the day of the assembly.
By giving the tables the Lord made a covenant with His people to give them life and prosperity if they would obey His law. The verse belongs to the lessons of Deuteronomy 9-12 that Moses was charged to repeat to Israel so that no member of the congregation would remain ignorant of duty. The same requirement rests on each person today to learn their importance, to live by every word of God, and to express these heavenly principles in all doing and saying.