Reading from the Synaxarion:

Malachi the Prophet

The Prophet Malachi ("messenger of God") is the last of the twelve minor Prophets, and also of all the Prophets of the Old Testament. He prophesied in the days of Nehemias, a wise man among the Jews, who also held a high and powerful position in the court of Artaxerxes the Long-armed, King of the Persians, who reigned from 465 to 424 B.C. Malachis' book of prophecy is divided into four chapters; he foretold the coming of Christ as the Sun of Righteousness (4:2)