23 And they began to question among themselves who then of them it might be who is about to do this.
Luke 22:23 Cross References - BLB
Matthew 26:22
22 And being grieved exceedingly, they began, each one, to say to Him, “Is it I, Lord?”
Mark 14:19
19 They began to be grieved and to say to Him one by one, “Surely not I?”
John 13:22-25
22 The disciples began to look upon one another, being uncertain of whom He is speaking.
23 There was reclining one of His disciples whom Jesus loved in the bosom of Jesus.
24 Therefore Simon Peter motions to him, to ask who it is about whom He is speaking?
25 Then he thus having leaned on the breast of Jesus, says to Him, “Lord, who is it?”