King James Version
Then shalt thou prosper, if thou takest heed to fulfil the statutes and judgments which the LORD charged Moses with concerning Israel: be strong, and of good courage; dread not, nor be dismayed.English Standard Version
Then you will prosper if you are careful to observe the statutes and the rules that the LORD commanded Moses for Israel. Be strong and courageous. Fear not; do not be dismayed.New International Version
Then you will have success if you are careful to observe the decrees and laws that the LORD gave Moses for Israel. Be strong and courageous. Do not be afraid or discouraged.