The Code of Hammurapi, 215???20 in Pritchard, Texts, 175). (There is no evidence that the biblical injunction against eating pork was intended or understood to prevent trichinosis or other diseases which cause blindness.) Biblical cases include Isaac (Gen. 27:1), Jacob (Gen. 48:10), Eli (I Sam. 3:2; 4:15), and Ahijah the Shilonite (I Kings 14:4), all of whose eyesight failed in old age. (Deut. 34: