Fear of Zeus’s guest-law wrath drove an act of selfless decency.

Evidence

And I? Zeus flashed an inspiration through my mind, though I wish I’d died a soldier down in Egypt then! … He feared the wrath of Zeus, the god of guests, the first of the gods to pay back acts of outrage. — Homer; Robert Fagles; Bernard Knox, The Odyssey, 2840

Categorization

• XREF: Caps the xenia theme threaded through the entire epic, from Polyphemus to the suitors.