Totally unrelated to anything:
Ps. 121:6 Why would God assure His people that the moon would not strike them by night? Were they irrationally afraid of the sky falling (Chicken Little Syndrome) or meteors or lunar eclipses? Just a nagging question.
It could also be that they were afraid of becoming lunatics (recall that Latin: luna = moon), werewolves, or the like.
None of those explanations, however, seem to be the most obvious explanation. The most obvious explanation is that in the ancient world, both the sun and the moon were thought to be the most powerful things in the created order. Consider, for example, their prominent roles in most pagan religions. This role is reflected in the English days of the week: "Sunday" took first place, followed by "Monday."
The fact that God is more powerful than the sun and the moon should be a comfort to any Christian, as God is able to protect us not only from wild animals and dangerous men, but even from "the stars" - the influence of the zodiak.
It is - in some sense - lunacy for Christians to be afraid of anything created, for God is the creator.