Contradiction with Jeremiah 9:23-24
1 Corinthians 1:30 attributes wisdom, righteousness, sanctification, and redemption entirely to being in Christ, whereas Jeremiah encourages boasting in understanding and knowing God, emphasizing human engagement.
Jeremiah 9:23-24: Thus saith the LORD, Let not the wise [man] glory in his wisdom, neither let the mighty [man] glory in his might, let not the rich [man] glory in his riches:
Contradiction with James 2:24
1 Corinthians 1:30 emphasizes that righteousness is through Christ, suggesting faith alone, while James mentions that a person is justified by works and not by faith only.
James 2:24: Ye see then how that by works a man is justified, and not by faith only.
Contradiction with Romans 2:6-7
1 Corinthians 1:30 implies righteousness and redemption as gifts through Christ, but Romans highlights seeking glory, honor, and immortality through perseverance in good works.
Romans 2:6-7: Who will render to every man according to his deeds:
Contradiction with Galatians 3:3
While 1 Corinthians 1:30 suggests sanctification is through Christ, Galatians points to human effort in continuing with works after beginning by the Spirit.
Galatians 3:3: Are ye so foolish? having begun in the Spirit, are ye now made perfect by the flesh?