Panentheism in Judaism
When Hasidic Orthodox Jews first developed as a movement and as a theology, their theology was essentially panentheistic, even though they themselves never had even heard of this word. Non-Hasidic Orthodox Jews viewed this theology as as heretical. However, after the schism between Hasidic and non-Hasidic Orthodox Jews closed in the mid 1800s, panentheism became an accepted way of thinking in Orthodox Jewish theology. While not the mainstream point of view, panentheism has become more popular in the non-Orthodox Jewish denominations like Conservative Judaism and Reform Judaism through the writings of rabbis like Abraham Joshua Heschel, Arthur Green, Wayne Dosick, and Lawrence Kushner.
Opposing Views
Gnosticism holds the inverse idea of panentheism: it regards matter as evil and ultimately flawed, and thus not a part of God, even though they admit that it came about through emanations of the supreme being, but this event being more of an accident than of being on purpose.
See also: process theology, Creation Spirituality