Complex sentence: Ammit was not worshipped, and was never regarded as a goddess; instead she embodied all that the Egyptians feared, threatening to bind them to eternal restlessness if they did not follow the principal of Ma'at.
Split into simpler sentences: Ammit was not worshipped, and she was never regarded as a goddess. Instead, she embodied all that the Egyptians feared, threatening to bind them to eternal restlessness if they did not follow the principle of Ma'at.