Contradiction with Exodus 21:17
This verse is consistent with the punishment for cursing parents, hence not providing a contradiction.
Exodus 21:17: And he that curseth his father, or his mother, shall surely be put to death. [curseth: or, revileth]
Contradiction with Ephesians 6:1-3
This passage encourages obedience to parents with the promise of wellbeing and long life, countering the curse and punishment expressed in Proverbs 20:20 with a promise of blessing.
Ephesians 6:1-3: Children, obey your parents in the Lord: for this is right.
Contradiction with Colossians 3:20
This emphasizes the importance of obeying one's parents as pleasing to the Lord, offering a positive view rather than the dire consequences described in Proverbs 20:20.
Colossians 3:20: Children, obey [your] parents in all things: for this is well pleasing unto the Lord.
Paradox #1
The verse can be seen as harsh because it implies severe consequences for disrespecting parents. Some people may find this inconsistent with other teachings that emphasize forgiveness and redemption. However, this is more about emphasizing the seriousness of respecting one’s parents rather than a literal expectation.