That this day. The conj, hoti makes "this day" part of what He said. See note on Luk_23:43, and Mar_14:25 above. We have the same construction in Luk_4:2 t; Mar_19:9, but not in Mat_21:28; Luk_22:34; Luk_23:43.
the cock = a cock. See App-160.
twice. A Divine supplement, only here. See App-160.