Reference for Ecclesiastes 4:7

וְשַׁ֧בְתִּי אֲנִ֛י וָאֶרְאֶ֥ה הֶ֖בֶל תַּ֥חַת הַשָּֽׁמֶשׁ׃

Then I returned and saw vanity under the sun.

BDB