Contradiction with Ecclesiastes 3:7
Contradicts by suggesting there is a time to keep silence, while Deuteronomy 6:20 emphasizes explaining the laws to children.
Ecclesiastes 3:7: A time to rend, and a time to sew; a time to keep silence, and a time to speak;
Contradiction with Proverbs 25:2
Implies glory in concealing a matter, contrasting the directive in Deuteronomy 6:20 to reveal and explain the law.
Proverbs 25:2: [It is] the glory of God to conceal a thing: but the honour of kings [is] to search out a matter.