Today we begin a 12-week sermon series on the Book of Deuteronomy, the 5th and final book of the Pentateuch. Israel stands on the verge of entering Canaan after 40 years of wandering in the wilderness. As Walter Brueggemann says: "Deuteronomy looks both backward to rootage and forward to crisis, and interprets at the precise place where rootage and crisis intersect." That makes Deuteronomy also relevant for our time. Today is the introduction.