Adam Clarke on Job 16:4

I also could speak - It is probably better to render some of these permissives or potential verbs literally in the future tense, as in the Hebrew: I also Will speak. Mr. Good has adopted this mode.

If your soul were in my soul's stead - If you were in my place, I also could quote many wise sayings that might tend to show that you were hypocrites and wicked men; but would this be fair? Even when I might not choose to go farther in assertion, I might shake my head by way of insinuation that there was much more behind, of which I did not choose to speak; but would this be right? That such sayings are in memory, is no proof that they were either made for me, or apply to my case.