Turned aside... — Better, turned like a relaxed bow. (See Note to Psalms 78:9.) The bows of the Hebrews, like those of other ancient nations, were probably, when unstrung, bent the reverse way to that assumed when strung, which makes the figure more expressive of the disposition which cannot be relied upon in the moment of need.
Related Commentaries of Psalms 78:57
Psalms 78:57
57 But turned back, and dealt unfaithfully like their fathers: they were turned aside like a deceitful bow.