For then you will be able to advance, if you keep the commandments and judgments that the Lord instructed Moses to teach to Israel. Be strengthened and act manfully. You should not fear, and you should not dread
Other versions
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.