John 13:28

28 and none of those reclining at meat knew for what intent he said this to him,

John 13:28 Meaning and Commentary

John 13:28

Now no man at the table
Not one of those who lay upon the couches at the table, excepting John, to whom the signal was given:

knew for what intent he spake this unto him;
and perhaps he might not know the meaning of his last words, that he spoke concerning the act of betraying him; nor did not imagine that the thing was so near and so speedily to be done, as it was.

John 13:28 In-Context

26 Jesus answereth, `That one it is to whom I, having dipped the morsel, shall give it;' and having dipped the morsel, he giveth [it] to Judas of Simon, Iscariot.
27 And after the morsel, then the Adversary entered into that one, Jesus, therefore, saith to him, `What thou dost -- do quickly;'
28 and none of those reclining at meat knew for what intent he said this to him,
29 for certain were thinking, since Judas had the bag, that Jesus saith to him, `Buy what we have need of for the feast;' or that he may give something to the poor;
30 having received, therefore, the morsel, that one immediately went forth, and it was night.
Young's Literal Translation is in the public domain.