Cross reference
John 13:22
22 The disciples looked one on another, doubting of whom he spake.
Luke 22:23
23 And they began to question among themselves, which of them it was that should do this thing.
Matthew 26:22
22 And they were exceeding sorrowful, and began to say unto him every one, Is it I, Lord?
Mark 14:19
19 They began to be sorrowful, and to say unto him one by one, Is it I?
Genesis 42:1
1 Now Jacob saw that there was grain in Egypt, and Jacob said unto his sons, Why do ye look one upon another?