ASV: Only be strong and very courageous, to 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 have good success whithersoever thou goest.

BBE: Only take heart and be very strong; take care to do all the law which Moses my servant gave you, not turning from it to the right hand or to the left, so that you may do well in all your undertakings.

DBY: Only be strong and very courageous, that thou mayest take heed to do according to all the law that Moses my servant commanded thee. Turn not from it to the right or to the left, that thou mayest prosper whithersoever thou goest.

KJV: 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.

JPS: Only be strong and very courageous, to 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 have good success whithersoever thou goest.

WBS: 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.

WEB: Only be strong and very courageous, to observe to do according to all the law, which Moses my servant commanded you. Don't turn from it to the right hand or to the left, that you may have good success wherever you go.

YLT: Only, be strong and very courageous, to observe to do according to all the law which Moses My servant commanded thee; thou dost not turn aside from it right or left, so that thou dost act wisely in every 'place' whither thou goest;
