In Shabbat 12b, G-d is called the Omnipresent several times, implying to me that G-d is present everywhere.
But then it says this:
אין מלאכי השרת מכירין בלשון ארמי שאני חולה דשכינה עמו
"Anyone who requests that his needs be met in the Aramaic language, the ministering angels do not attend to him to bring his prayers before God. ... A sick person is different. He does not need to bring his prayers before God because the Divine Presence is with him."
This implies to me that the Divine Presence is only with a sick person and not with the other people who pray. But then, how should I understand the idea of "Omnipresent"?