Ecclesiastes 1:14

14I have seen everything that is done under the sun, and behold, all is avanity
The Hebrew term hebel can refer to a “vapor” or “mere breath” (see note on 1:2)
and a striving after wind.
Or  a feeding on wind; compare Hosea 12:1 (also in Ecclesiastes 1:17; 2:11, 17, 26; 4:4, 6, 16; 6:9)

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