The feeling of nature exists in the Gospels. Jesus speaks of the splendour of the lilies of the field. But I said that the oceanic feeling, as I experienced it - which is different from the sentiment of nature - is foreign to Christianity because it does not involve either God or Christ. It is something situated at the level of the pure feeling of existing. I am not certain that it was familiar to the Greeks. You are right to say that they had the feeling of nature, and they had it to the highest degree, but they speak very rarely of immersion in the Whole.
From Pierre Hadot, The Present Alone is Our Happiness (Stanford, 2011)