Jacob wasn't surprised by Eliza's rejection, given that he knew he would never easily acquire the Godly Faith Nectar that easily, especially considering its properties and importance to the Gods.
Nonetheless, Jacob could tell how reluctant Eliza was, and this was something he could exploit.
"Heh, making an enemy out of a God?" Jacob scoffed as his voice was riddled with mockery, "Let me ask this Holy King. Since you're already standing at the pinnacle of the Legendary Plains, are you willing to remain at your current rank forever?
"After all, although we have thousands of years of lifespan, it is still limited unless you are willing to discard your origin and turn into a Dark Being and live on borrowed life. I don't think the Holy King was such a narrow-minded person."