Note: The most accurate translation of Dante's original quote is "abandon all hope, ye who enter here." Murtaugh is not wrong leaving out the "all," however. She's quoting a short-lived theme park's cheerful entry tune, in which the missing "all" shows up later.

It's a world of pain
It's a world of fear
Abandon hope ye who enter here
The abyss, it will stare 
Into you, so despair
It's a small hell built for all.