Book of Deuteronomy
Author: Moses wrote the Book of Deuteronomy, which is in fact a collection of his sermons to Israel just before they crossed the Jordan. “These are the words which Moses spoke” (1:1). Someone else (Joshua, perhaps) may have written the last chapter.
Date of Writing: These sermons were given during the 40-day period prior to Israel’s entering the Promised Land. The first sermon was delivered on the 1st day of the 11th month (1:3), and the Israelites crossed the Jordan 70 days later, on the 10th day of the 1st month (Joshua 4:19). Subtract 30 days of mourning after Moses’ death (Deuteronomy 34:8), and we’re left with 40 days. The year was 1410 B.C.
Purpose of Writing: A new generation of Israelites was about to enter the Promised Land. This multitude had not experienced the miracle at the Red Sea or heard the law given at Sinai, and they were about to enter a new land with many dangers and temptations. The book of Deuteronomy was given to remind them of God’s law and God’s power.