Ecclesiastes 7:25 - Joseph Benson’s Commentary on the Old and New Testaments

I applied my heart to know I was not discouraged, but provoked, by the difficulty of the work, to undertake it. To know, search, and seek out wisdom He useth three words signifying the same thing, to intimate his vehement desire, and vigorous and unwearied endeavours after it. And the reason of things Both of God's various providences, and of the counsels and courses of men. To know the wickedness, &c Clearly and fully to understand the great evil of sin.