Let their eyes be darkened (skotisqhtwsan oi opqalmoi autwn). First aorist passive imperative of skotizw, to darken. A terrible imprecation. That they may not see (tou mh blepein). Repeated from verse Luke 8 . Bow down (sunkampson). First aorist active imperative of sunkamptw, old verb, to bend together as of captives whose backs (nwton, another old word, only here in N.T.) were bent under burdens. Only here in N.T.