Mark 14:19

And they began to be sorrowful
And were so, all but Judas, at this saying of Christ's:

and to say unto him, one by one;
even till it came to Judas himself,

is it I?
that shall betray thee;

and another said, is it I?
This clause is wanting in the Vulgate Latin, Syriac, Arabic, Persic, and Ethiopic versions, and in two of Beza's copies; and indeed seems to be redundant, since the disciples are said before to express themselves in this manner, one by one; (See Gill on Matthew 26:22).