Malachi is the last book of the Old Testament and belongs to the period of Nehemiah. The prophets message is to the priests and the people, charging them with indifference, doubt, and immorality. Malachi tells of the coming day of the Lord and closes the book with a prophecy of John the Baptist.

Malachi 2

2:5 My covenant was with him of life and peace; and I gave them to him for the fear wherewith he feared me, and was afraid before my name.