Joshua 1:9
Have I not commanded you? Be Strong and courageous! “Do not tremble or be dismayed, for the Lord your God is with you wherever you go,”
You are told in the previous verse, Joshua 1:8. “This book of the law shall not depart from your mouth, but you shall depart from your mouth, but you shall meditate on it day and night, so that you may be careful to do according to all that is written in it; for then you will make your way prosperous, and then you will have success.
Of course, now we have the New and Old Testament to meditate on. Plus, you must pray and work with the Holy Spirit to understand the scripture. The older saints are there to help you too.