Contradiction with John 9:3
This verse says that affliction is not always the result of personal sin, contradicting the notion in 1 Corinthians 11:30 that weakness and sickness are due to improper conduct.
John 9:3: Jesus answered, Neither hath this man sinned, nor his parents: but that the works of God should be made manifest in him.
Contradiction with Job 1:1-8
Job is described as blameless and upright, yet he suffers greatly, contrasting with the idea that sickness and weakness come from personal wrongdoing as mentioned in 1 Corinthians 11:30.
Job 1:1-8: There was a man in the land of Uz, whose name [was] Job; and that man was perfect and upright, and one that feared God, and eschewed evil.
Contradiction with Luke 13:1-5
Jesus explains that those who suffer disasters are not more sinful than others, challenging the implication in 1 Corinthians 11:30 that physical ailments are due to sinful behavior.
Luke 13:1-5: There were present at that season some that told him of the Galilaeans, whose blood Pilate had mingled with their sacrifices.