Contradiction with 1 Corinthians 10:31
Contradicts the idea of selfish joy in personal accomplishments, suggesting instead that all actions should glorify God, unlike the focus on personal delight in Isaiah 5:1.
1 Corinthians 10:31: Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God.
Contradiction with Proverbs 16:18
Contrasts Isaiah 5:1's rejoicing in personal achievements with the warning that pride precedes destruction.
Proverbs 16:18: Pride [goeth] before destruction, and an haughty spirit before a fall.
Contradiction with James 4:16
Challenges Isaiah 5:1's celebration, calling out joy and boasting in personal efforts as evil.
James 4:16: But now ye rejoice in your boastings: all such rejoicing is evil.
Contradiction with Luke 12:19
Whereas Isaiah 5:1 speaks of satisfaction and delight in one's labor, this verse warns against complacency and self-satisfaction.
Luke 12:19: And I will say to my soul, Soul, thou hast much goods laid up for many years; take thine ease, eat, drink, [and] be merry.