King James Bible
"And it came to pass in the fortieth year, in the eleventh month, on the first day of the month, that Moses spake unto the children of Israel, according unto all that the LORD had given him in commandment unto them;"
This precise dating marks the end of Israel's wilderness wandering, just before entering the Promised Land. The fortieth year represents the completion of a generation's judgment, while the specific date underscores the historical reliability and significance of Moses' final address. Moses delivers his farewell discourse to the new generation born in the wilderness. This audience had not experienced the Exodus firsthand, making his retelling and reaffirmation of the covenant essential for their identity and mission. Moses speaks not from personal authority but as God's faithful messenger, transmitting divine instructions completely. This phrase establishes Deuteronomy as authoritative covenant renewal, ensuring nothing is added or omitted from God's original commands.