Matthew 26:22
And they were exceedingly sorrowful, and began every one of them to say unto him, Lord, is it I?
Mark 14:19-20
And they began to be sorrowful, and to say unto him one by one, Is it I? and another said, Is it I?
Luke 22:23
And they began to inquire among themselves, which of them it was that should do this thing.
John 13:22-25
Then the disciples looked one on another, doubting of whom he spoke.
John 21:17
He said unto him the third time, Simon, son of Jonas, do you love me? Peter was grieved because he said unto him the third time, Do you love me? And he said unto him, Lord, you know all things; you know that I love you. Jesus said unto him, Feed my sheep.
Treasury of Scripture Knowledge did not add