Sirach 43:6-8

Revised Standard Version

⁶ He made the moon also, to serve in its season^[a]
    to mark the times and to be an everlasting sign.
⁷ From the moon comes the sign for feast days,
    a light that wanes when it has reached the full.
⁸ The month is named for the moon,
    increasing marvelously in its phases,
an instrument of the hosts on high
    shining forth in the firmament of heaven.