There have been three primary reasons that some scholars have thought this book does not deserve to be in the Bible. First, it does not contain the name of God. However, God's name may appear in 8:6. Furthermore, what makes a book theological or religious is not just the presence of the divine name. God's name does not appear in the Book of Esther either.
Second, the presence of frank language describing physical intimacies seems inappropriate in the Bible to some people. Yet the Bible presents marriage as sacred, including its physical aspects.
Third, the difficulty of interpretation has caused some readers to reject it as non-canonical. This criticism fails to recognize that finite and fallen human beings may not easily comprehend the revelations of an infinite and omniscient God.
"Like other portions of the Word of God, this book has its difficulties. But so have all the works of God. Is not the fact that they surpass our unaided powers of comprehension and research a sign-manual' of divinity? Can feeble man expect to grasp divine power, or to understand and interpret the works or the providences of the All-wise? And if not, is it surprising that His Word also needs superhuman wisdom for its interpretation? Thanks be to God, the illumination of the Holy Ghost is promised to all who seek for it: what more can we desire?"23
