John 13:29
For some of them thought, because Judas had the bag, that Jesus had said unto him, Buy those things that we have need of against the feast; or, that he should give something to the poor. For some of them thought, because Judas had the bag, that Jesus had said unto him, Buy those things that we have need of against the feast; or, that he should give something to the poor.
John 13:29 belongs to the Passover supper at the table with Jesus and the disciples, with Judas still present and remaining among them through the events leading to the betrayal. In its immediate setting Jesus is troubled in spirit and testifies that one of the disciples will betray Him, the disciples look on one another doubting of whom He speaks, He gives the dipped sop to Judas Iscariot the son of Simon, after the sop Satan enters Judas, He says That thou doest, do quickly, and Judas having received the sop goes immediately out into the night to carry out the betrayal. The disciples misunderstood those words to Judas because Judas kept the bag and managed their shared money and handled buying and giving, so they thought Jesus was telling him on an ordinary errand to buy what was needed for the feast, the Passover feast, or to give money to the poor.
The disciples knew nothing of Judas' purposes and did not suspect him, because he was not villainous in appearance or deportment but was regarded as a man of great capabilities with breadth of knowledge and valuable qualifications, while Jesus alone could read his secret as a channel of darkness turned toward betrayal. Though Jesus knew Judas would betray Him, He did not exclude, rebuke, or expose him, but tenderly included him in His ministry to the disciples and treated him with goodness, humility, and love like the rest, washing his feet, even first, and sharing the sacrament with him. Jesus' dealing with Judas gave him a final chance to repent and showed that Jesus knew his purpose, but Judas rejected the final appeal and remained settled in his plan.
The money entrusted to Judas as treasurer also gave him repeated chances to serve others and resist his covetousness, but he used it dishonestly. The verse places Judas among the apostles as one counted a believer and entrusted with a role among them. The verse does not make a person's hidden heart grounds for excluding them from the service, since people cannot distinguish the faithful from the unfaithful by reading hearts. Judas in the verse serves as a warning against betraying Christ: youth and all believers must work out salvation with fear and trembling by living with genuine religious influence and unwavering faith in Christ as a personal Saviour so that they will never betray Him, and gaining this faithful experience is what all need to gain.