Precept Upon Precept Inductive Studies . . . Genesis Part 4: Wrestling with God - A Study on Isaac, Jacob, and Esau - Chapters 24-36 (4 lessons) - God renews His covenant promise with Abraham through Isaac and Jacob. Two struggling nations arise from Isaac's sons, Jacob and Esau. The truths we learn about God can guide our faith, helping us see His purposes in our lives. Workbook. Chinese language - Simplified. Note: Difference between Simplified and Traditional: While The People's Republic of China and Singapore use the simplified system of writing Chinese characters, Taiwan, Hong Kong, and Macao still use the traditional system. It is wise to check user's personal preference.