Psalm 81:3 Blow up the trumpet in the new moon, in the time appointed, on our solemn feast day. MC VC

Haggai 1:1 In the second year of Darius the king, in the sixth month, in the first day of the month, came the word of the Lord by Haggai the prophet unto Zerubbabel the son of Shealtiel, governor of Judah, and to Joshua the son of Josedech, the high priest, saying, MC VC