King James Version
For the priest's lips should keep knowledge, and they should seek the law at his mouth: for he is the messenger of the LORD of hosts.English Standard Version
For the lips of a priest should guard knowledge, and people should seek instruction from his mouth, for he is the messenger of the LORD of hosts.New International Version
"For the lips of a priest ought to preserve knowledge, and from his mouth men should seek instruction-because he is the messenger of the LORD Almighty.