This statement is from God Himself. You would think everyone should see that as an advance information when we enter the world. Success may be described as accomplishing set goals and life purposes. Prosperity on the other hand is thriving in these life accomplishments, especially in economic well being. So, God told Joshua, the twin are in the book. By this verse, God released the secret to making it in life. Contrary to some success experts, its not in struggles to get all for your self. Its in meditating on what the word says. That’s not just an exercise in futility. Wikipedia describes this meditation as coming : ”… from the Latin word meditārī, which has a range of meanings including to reflect on, to study, and to practice. Christian meditation is the process of deliberately focusing on specific thoughts (such as a Bible passage) and reflecting on their meaning in the context of the love of God”. This separates this meditation from other kinds in the occult. This meditation is an introspection on the scriptures. Here they are scattered all over the word: Phil.4:8, Psa. 1:2, Psa.19:14, The New Testament has instructions on how we are to meditate( Col.3:2-4 ). Its your turn now.
This book of the law shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou mayest observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success. Joshua 1:8 KJV