Joshua 1:6-8

You must be strong and brave. You will lead the people to acquire and apportion the land that I promised their ancestors I would give them. You must remain very strong and courageous! Be faithful to obey all the teaching that my servant Moses commanded you to follow. Do not deviate from him to the right or to the left, so that you will have overwhelming success in everything you undertake. Recite this scroll of the law constantly. Contemplate it day and night and be careful to follow every word it contains; then you will enjoy incredible prosperity and success.