'Successful' in the Bible

Make sure you are very strong and brave! Carefully obey all the law my servant Moses charged you to keep! Do not swerve from it to the right or to the left, so that you may be successful in all you do.

This law scroll must not leave your lips! You must memorize it day and night so you can carefully obey all that is written in it. Then you will prosper and be successful.

I'm still as strong today as I was the day Moses commissioned me. I'm as strong today as I was then, and I can go out to battle and come back successful.