Ecclesiastes 2:21 - For there is a man whose labour is in wisdom, and in knowledge, and in equity; H3788 yet to a man that hath not laboured therein shall he leave it for his portion. This also is vanity and a great evil.
Ecclesiastes 4:4 - Again, I considered all travail, and every right H3788 work, that for this a man is envied of his neighbour. This is also vanity and vexation of spirit.
Ecclesiastes 5:11 - When goods increase, they are increased that eat them: and what good H3788 is there to the owners thereof, saving the beholding of them with their eyes?