In this book the author seeks to show how God called particular individuals among the Israelites, a nation of people whom he chose above all other nations bigger and more powerful, to be his special possession. God was with these individuals whom he used to show by mighty acts, that only by believing with their mind, soul, heart and strength; and obeying God's commands will they successfully avoid the pitfalls of doing what was right in their own eyes, and trusting in their own resources.