Final answer:
The Book of Exodus in the Bible shows that even in difficult times people can live out the covenant and remain faithful to God.
Step-by-step explanation:
The book that shows us that even in difficult times people can live out the covenant and remain faithful to God is the Book of Exodus in the Bible. Exodus tells the story of the Hebrews' escape from slavery in Egypt and their journey to the Promised Land. Despite facing numerous challenges and hardships, the Hebrews remain faithful to God's covenant and rely on Him for guidance and protection. For example, when the Hebrews are in the wilderness and face hunger and thirst, God provides them with manna from heaven and water from a rock, showing that He will provide for His people even in difficult times.