John 13:29

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;

John 13:29 Meaning and Commentary

John 13:29

For some of them thought
This was the thought of some of the disciples, it may be of all of them but John;

because Judas had the bag:
which was for the common supply of Christ and his disciples, and for the relief of the poor; (See Gill on John 12:6).

That Jesus had said unto him, buy those things that we have need of
against the feast;
the feast of the passover, which was to be two days after; and shows, that this was not the passover which Christ now ate with his disciples:

or that he should give something to the poor;
for whom Christ cared, and had a hearty concern, and for whom Judas had very little, notwithstanding his high pretensions.

John 13:29 In-Context

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.
31 When, therefore, he went forth, Jesus saith, `Now was the Son of Man glorified, and God was glorified in him;
Young's Literal Translation is in the public domain.