Malachi's style is quite different from that of any other writing prophet. Instead of delivering messages to his audience, he charged them with various sins, six times in all. His was a very confrontational style of address. After each charge, he proceeded to back it up with evidence.
"Even a casual reading shows Malachi's use of rhetorical questions. Seven times he put them into the mouths of his audience (1:2, 6, 7; 2:17; 3:7, 8, 13, and perhaps 2:14). In addition he asked the people several rhetorical questions (e.g., 1:6, 8, 9; 2:10, 15; 3:2).
"The format of 1:2 is typical of Malachi's style. First there is God's statement: I have loved you.' Then follows the popular objection that questions the truth of God's statement--viz., How have you loved us?' Finally there is the justification for God's statement."10
Malachi used the question and answer method extensively. This method became increasingly popular, and in the time of Christ the rabbis and scribes used it frequently, as did the Lord Jesus. They also used rhetorical questions as a teaching device (cf. Matt. 3:7; 11:7-9; 12:26-27; Luke 14:5; John 18:38; Rom. 3:1-4; 4:1-3; 6:21; 7:7; 1 Cor. 9:7-13; Gal. 3:21; Heb. 1:14).
This book consists of several short paragraphs on various themes. There are no oracles against foreign nations nor any extended burden against Israel. There are no personal experiences to which the prophet referred, yet his style is straightforward, easy to understand, and beautifully designed.