Contradiction with Proverbs 19:17
This verse implies that giving to the poor is akin to lending to the Lord, contradicting the idea of disciples not having enough food themselves.
Proverbs 19:17: He that hath pity upon the poor lendeth unto the LORD; and that which he hath given will he pay him again. [that which...: or, his deed]
Contradiction with Mark 6:41-44
This account of the feeding of the five thousand demonstrates abundance in Jesus’ ministry, contrasting the disciples' need to go to buy food in John 4:8.
Mark 6:41-44: And when he had taken the five loaves and the two fishes, he looked up to heaven, and blessed, and brake the loaves, and gave [them] to his disciples to set before them; and the two fishes divided he among them all.
Contradiction with Matthew 6:31-32
Jesus teaches not to worry about food, while John 4:8 shows the disciples going to buy food.
Matthew 6:31-32: Therefore take no thought, saying, What shall we eat? or, What shall we drink? or, Wherewithal shall we be clothed?
Contradiction with Luke 12:29-31
Encourages trust in God for providing necessities, differing from John 4:8 where disciples are concerned with obtaining food.
Luke 12:29-31: And seek not ye what ye shall eat, or what ye shall drink, neither be ye of doubtful mind. [neither...: or, live not in careful suspense]
Contradiction with Acts 2:44-45
The early Christians shared everything and lacked nothing, unlike the situation in John 4:8 where disciples went to purchase food.
Acts 2:44-45: And all that believed were together, and had all things common;