Psalms 42:5

Why art thou cast down, O my soul? -Margin, bowed down. The Hebrew word means to bow down, to incline oneself; then, usually, to prostrate oneself as in public worship; and then, to sink down under the weight of sorrow; to be depressed and sad. The Septuagint renders it, “Why art thou grieved?” -περίλυποςperilupos. So the Vulgate. This is an earnest remonstrance addressed by himself to his own soul, as if there were really no occasion for this excessive depression; as if he cherished his grief improperly. There was a brighter side, and he ought to turn to that, and take a more cheerful view of the matter.