Matthew Poole and continuators on Job 5:6

6. Although affliction cometh not forth of the dust, neither doth trouble spring out of the ground;

Or, For, or rather, Because. So the following words may contain a reason why he should seek unto God, as he exhorts him. v. 8. Or, Surely, as that particle is oft used. And so it is a note of his proceeding to another argument.

Or, iniquity; As this word oft signifies, and of this the following sentence is true. And so this first branch speaks of sin, and the next branch of trouble, which is the fruit or sin: And both sin and trouble are said to come from the same spring. But this word signifies, also affliction or misery or trouble, as Psal. 90, 10 Prov. 12. 21. Which seems most proper here both because it is so explained by the following words trouble; and again trouble v. 7. the same thing being repeated in several words, as is usual in holy Scripture and because the great thing which troubled Iob, and the chief matter of these discourses was Iobs afflictions, not his sins

It springs not up by choice, as herbs which grow of their own accord out of the earth: Or, it comes not from men or creatures here below, but it comes from a certain and an higher cause, even from God, and that for mans sins, and therefore thou shouldest seek to him for redress, as it follows v. 8.

Marginal references: Or, iniquity.