Moon - Vine's Expository Dictionary of New Testament Words
Moon[ 1,,G4582, selene ]
from selas, brightness" (the Heb. words are yareach, "wandering," and lebanah, "white"), occurs in Matthew 24:29; Mark 13:24; Luke 21:25; Acts 2:20; 1 Corinthians 15:41; Revelation 6:12; Revelation 8:12; Revelation 12:1; Revelation 21:23. In Revelation 12:1, "the moon under her feet" is suggestive of derived authority, just as her being clothed with the sun is suggestive of supreme authority; everything in the symbolism of the passage centers in Israel. In Revelation 6:12 the similar symbolism of the sun and "moon" is suggestive of the supreme authority over the world, and of derived authority, at the time of the execution of Divine judgments upon nations at the close of the present age.
[ 2,,G3561, neomenia ]
or noumeniua, denoting "a new moon" (neos, "new," men, "a month:" See MONTH), is used in Colossians 2:16, of a Jewish festival. Judaistic tradition added special features in the liturgy of the synagogue in connection with the observance of the first day of the month, the new "moon" time.
In the OT the RV has "new moon" for AV, "month" in Numbers 29:6; 1 Samuel 20:27; Hosea 5:7. For the connection with feast days See Leviticus 23:24; Numbers 10:10; Numbers 29:1; Psalms 81:3.