During the incantation, the lines spoken by the Gods are:
We know that Ebisu did have a "pure heart". As the Wikia article on Ebisu states:
He is also a truly kind God, as his desire to control and name Ayakashi and go to the underworld to retrieve the locution brush is because he believed if he did so he could relieve some of the strife and pain that Ayakashi cause and make the world a truly better place. This is shown when he is reincarnated and talks to Yato, saying when he realized he existed he took in the atmosphere and immediately fell in love with the world and wanted to bring the world and humans happiness, with Yato stating that was his true inner character and the type of person he has always been and will be. This is once again stated in chapter 39 by Kunimi, who states that the master wanted to control Ayakashi to improve the world as he grew to understand that money alone cannot make humans happy.
I doubt that the lines spoken during the incantation don't hold any meaning because they make perfect sense.
Is there any logical basis for his death being caused by the Pacification Ring?