Charles Ellicott Commentary Ecclesiastes 2:19

"And who knoweth whether he will be a wise man or a fool? yet will he have rule over all my labor wherein I have labored, and wherein I have showed myself wise under the sun. This also is vanity." — Ecclesiastes 2:19 (ASV)

Have rule. —The word occurs again in Ecclesiastes 6:2; Ecclesiastes 8:9; elsewhere only in Nehemiah and Esther; and in Psalms 119:133.