The Book of Deuteronomy is the fifth and final book of the Torah, the first five books of the Hebrew Bible and the Christian Old Testament. It is a summary of the laws and instructions given to the Israelites by God through Moses, and it serves as a reminder to the Israelites of their obligations and responsibilities as God's chosen people.The book begins with a review of the Israelites' journey from Egypt to the border of the Promised Land, and it includes a number of stories and events that occurred during this journey. It also includes a number of laws and instructions on how the Israelites should conduct themselves, including laws on worship, justice, charity, and social responsibility.Key figures in the book of Deuteronomy include Moses, who delivered the laws and instructions to the Israelites, and God, who gave the laws and instructions to Moses. The book also mentions various other Israelite leaders and officials, such as the priests and the Levites, who were responsible for carrying out the various laws and instructions.