7 “For the lips of a priest ought to preserve knowledge, because he is the messenger of the LORD Almighty and people seek instruction from his mouth.

Read Malachi 2:7 Using Other Translations

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.
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.
“The words of a priest’s lips should preserve knowledge of God, and people should go to him for instruction, for the priest is the messenger of the LORD of Heaven’s Armies.