St. Haggai the Prophet
Commemoration of the Prophet Haggai, one of the twelve minor prophets, who prophesied during the time of King Darius of Persia and Zerubbabel, Governor of Judah (c. 520 BC). The Book of Haggai preserves his oracles to the returnees from the Babylonian Exile, in which he exhorts them to finish the rebuilding of the Temple, whose glory foretells the glory of the messianic temple to come.
N.B. The Martyrologium Romanum (Vatican Press, 2004), the Church’s official list of holy men and women, lists the saints of the Old Law alongside those of the New.