Calvin produced commentaries on most of the books of the Bible. His commentaries cover the larger part of the Old Testament, and all of the new excepting Second and Third John and the Apocalypse. His commentaries and lectures stand in the front rank of Biblical interpretation. The greatest part of ZECHARIAH was written, according to Lowth, in prose; but he adds that "some parts about the end of his Prophecy (Zechariah 9, 10. and the beginning of 11.) are poetical and highly embellished, and that they are sufficiently perspicuous, though written by a Prophet, who of all is perhaps the most obscure." The last of the Old Testament Prophets, as admitted by all, was MALACHI. Who and what he was, we are left without any knowledge. Some have supposed him to have been EZRA under another name, or under the name of his office, as MALACHI means a messenger. But most think that he lived near a century after HAGGAI and ZECHARIAH.