The Epic of Gilgamesh is chock full of things to be afraid of. Exhibit A: Humbaba, Scorpion dudes, scary dreams, the edge of the world. Okay, you got us—that's a lot more than one exhibit. But, seriously, this whole epic deals us one freaky thing after another. And, poor Gilgamesh has a lot to be afraid of once the adrenaline from all his adventures wears off. In fact, the entire second part of the poem features Gilgamesh dealing with the second most feared thing in the world—death (the only thing the average person finds more terrifying is speaking in public).
The gods in The Epic of Gilgameshtry to frighten humans to prevent them from destroying what is sacred.
The epic portrays fear as beneficial when it protects us from harm. For example, if Enkidu had been more afraid of the wrath of the gods, he might not have taken the reckless course of action that led to the gods punishing him.