This title verse explains what follows as the oracle of Yahweh's word that He sent to Israel through Malachi. The Hebrew word massa', translated "oracle,"occurs 27 times in the Prophets (e.g., Isa. 13:1 Nah. 1:1; Hab. 1:1; Zech. 9:1; 12:1; et al.). It refers to a threatening message, a burden that lay heavy on the heart of God and His prophet.
"The word of Yahweh"refers to a message that comes from Him with His full authority. "Yahweh"is the name that God used in relationship to Israel as the covenant-making and covenant-keeping God. What follows is evidence that Israel was in trouble with Yahweh because the Jews had not kept the Mosaic Covenant. Yahweh, of course, was completely faithful to His part of the covenant.
"Malachi"means "my messenger."The prophet's name was appropriate since God had commanded him to bear this "word"to the people of Israel. The prophet was not the source of the revelation that follows; he was only a messenger whose job it was to communicate a message from Yahweh (cf. 2:7; 2 Tim. 4:2; 2 Pet. 1:20-21).