Matthew Poole and continuators on Job 5:9

9. Which doth great things and unsearchable; marvellous things without number.

Here Eliphaz enters upon a discourse of the infinite perfection and greatness of God's nature and works; which he doth partly as an Argument to enforce the Exhortation to seek and commit his cause to God, v. 8. because God was infinitely able either to punish him yet far worse, if he continued to provoke him, or to raise him from the dust, if he humbly addressed himself to him: and partly that by a true representation of God's Excellency and Glory, & of that vast disproportion which was between God & Iob, he might both convince Iob of his great sin in speaking so boldly and irreverently of him, and prevent his relapse into the same miscarriage.

Either such things as we may not boldly and curiously search into, Deut. 29. 29. Rom. 11. 33. Col. 2. 18. or such as by searching we cannot find out, Iob 11. 7. such as we cannot thoroughly understand either the works themselves, or God's way and manner of doing them, or God's designs or ends in doing them. And therefore, O Iob! thou art guilty of great impiety and folly to censure the waies and works of God as unreasonable, Ch. 3. v. 11. 20. because thou dost not fully understand the nature and use of them.

Which (though common, as the following works are, and therefore neglected and despised, yet) are just matter of wonder even to the wisest men.

Marginal references: Ch. 9, 10. Psal. 72. 18. & 40. 5. & 145. 3. Rom. 11. 33.; Heb▪ and there is no search.; Heb. till there be no number.