King James Version
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 prosper whithersoever thou goest.English Standard Version
Only be strong and very courageous, being careful to do according to all the law that Moses my servant commanded you. Do not turn from it to the right hand or to the left, that you may have good success wherever you go.Catholic Public Domain Version
Therefore, be strengthened and be very steadfast, so that you may observe and accomplish the entire law, which Moses, my servant, instructed to you. You may not turn aside from it to the right, nor to the left. So may you understand all that you should do