Jamieson, Fausset and Brown on Job 12:11

11. As the mouth by tasting meats selects what pleases it, so the ear tries the words of others and retains what is convincing. Each chooses according to his taste. The connection with Job 12:12 is in reference to Bildad's appeal to the "ancients" (Job 8:8). You are right in appealing to them, since "with them was wisdom," &c. But you select such proverbs of theirs as suit your views; so I may borrow from the same such as suit mine.