the moon: the pale light that rules the night sky, the lesser of the two great lights
This is the plain Greek word for the moon, and there is nothing more to it than that: the bright body that lights the night. English says "moon" for every one of its nine appearances. What is striking is not the word but where it turns up. Six of the nine sit inside a single stock picture, the sky failing as God steps in to judge.
That picture came ready made from the Hebrew prophets, where the moon goes dark or turns the color of blood beside a blackened sun. Jesus uses it in his warning about the end, Peter quotes it from the prophet Joel on the day of Pentecost, and Revelation stages it twice more. It is figurative language about a dependable order collapsing, not a forecast of what the sky will do, and the moon almost never appears in it alone: the sun (ἥλιος) goes dark with it and the stars (ἀστήρ) fall.
The other three appearances are ordinary, and together they say something quiet about the moon's standing:
- Paul measures the moon's brightness against the sun's and the stars' to show that risen bodies differ in glory.
- A woman in a vision stands with the moon beneath her feet, one of the sky's great bodies making up her portrait.
- The city at the end of Revelation has no need of sun or moon, because the glory of God lights it.
Glorious as it is, the moon here is a made lamp. The one who made it can darken it, outshine it, or set it aside.