Matthew 26:22

22And they were very sorrowful and began to say to him one after another, “Is it I, Lord?”

Mark 14:19

19They began to be sorrowful and to say to him one after another, “Is it I?”

John 13:22-25

22 aThe disciples looked at one another, uncertain of whom he spoke. 23 bOne of his disciples, whom Jesus loved, was reclining at table cat Jesusside,
Greek in the bosom of Jesus
24so Simon Peter motioned to him to ask Jesus
Greek lacks  Jesus
of whom he was speaking.
25 fSo that disciple, gleaning back against Jesus, said to him, “Lord, who is it?”
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