Prosper - See the margin. The literal rendering should be retained here since the notion of prosperity is separately introduced by a different word in Joshua 1:8.
Related Commentaries of Joshua 1:7
Joshua 1:7
7 Only be thou strong and very courageous, that thou mayest observe to do according to all the law, which Moses my servant commanded thee: turn not from it to the right hand or to the left, that thou mayest prospera whithersoever thou goest.