"They do not call upon my Name." Zeus, as relayed by the High Priest.
You won't understand what this means until you've truly called on His Name.
I would often feel vulnerable, worried, afraid of various things that could go wrong in life. I personally call it the "horrors of the universe". Essentially it's the apparent anarchic state of nature, that anything could go wrong. In one sense it can feel horrifying.
Yet... That all changes when I call on His Name. Today I quietly recited His various Names, not even vibrated, just whispered in devotion. I've done the Grand Ritual so many times I remember most of them by heart at this point. Zefs, Dias, Zina, Shango, Tengri, Iu-pattar, Perkunnas, Wodannaz, Indra, Shiva, Brahma, Atum, Amum...
Then Strength appeared. The power to face and conquer anything. The universe and all it's "horrors" felt like nothing to me anymore, like small things. The best way to describe it is I began to feel towards it the same way you look a small pet. You stop seeing it as threatening. You're above it, have authority over it and it's no longer this big, scary thing but a little thing you can even smile and laugh at.
Zeus' power is absolute and above anything and everything in this universe. Calling on His Name will demonstrate that very quickly.
Hail Zeus!