mark 14:70 And he denied it again. And a little after, they that stood by said again to Peter, Surely thou art one of them: for thou art a Galilaean, and thy speech agreeth thereto. - Free Bible Online

      70. And he denied it again--In Luke (Lu 22:58), "Man, I am not." But worst of all in Matthew--"And again he denied with an oath, I do not know the man" (Mt 26:72). This was the Second Denial, more vehement, alas! than the first.

      Peter's THIRD DENIAL of His Lord (Mr 14:70-72).

      70. And a little after--"about the space of one hour after" (Lu 22:59).
      they that stood by said again to Peter, Surely thou art one of them: for thou art a Galilean, and thy speech agreeth thereto--"bewrayeth [or 'discovereth'] thee" (Mt 26:73). In Luke (Lu 22:59) it is, "Another confidently affirmed, saying, Of a truth this [fellow] also was with him: for he is a Galilean." The Galilean dialect had a more Syrian cast than that of Judea. If Peter had held his peace, this peculiarity had not been observed; but hoping, probably, to put them off the scent by joining in the fireside talk, he was thus discovered. The Fourth Gospel is particularly interesting here: "One of the servants of the high priest, being his kinsman [or kinsman to him] whose ear Peter cut off, saith, Did not I see thee in the garden with Him?" (Joh 18:26). No doubt his relationship to Malchus drew his attention to the man who had smitten him, and this enabled him to identify Peter. "Sad reprisals!" exclaims BENGEL. Poor Peter! Thou art caught in thine own toils; but like a wild bull in a net, thou wilt toss and rage, filling up the measure of thy terrible declension by one more denial of thy Lord, and that the foulest of all.

JFB.