Malachi 2:7

2:7 For the lips of a priest should preserve knowledge of sacred things, and people should seek instruction from him because he is the messenger of the Lord who rules over all.

Malachi 3:16-17

3:16 Then those who respected the Lord spoke to one another, and the Lord took notice. A scroll was prepared before him in which were recorded the names of those who respected the Lord and honored his name. 3:17 “They will belong to me,” says the Lord who rules over all, “in the day when I prepare my own special property. I will spare them as a man spares his son who serves him.