Contradiction with Proverbs 9:13
A foolish woman makes noise versus the wise woman in 2 Samuel 20:16 who speaks with wisdom.
Proverbs 9:13: A foolish woman [is] clamorous: [she is] simple, and knoweth nothing.
Contradiction with 1 Corinthians 14:34
Women should remain silent, which contradicts the woman speaking out in 2 Samuel 20:16.
1 Corinthians 14:34: Let your women keep silence in the churches: for it is not permitted unto them to speak; but [they are commanded] to be under obedience, as also saith the law.
Contradiction with 1 Timothy 2:12
Prohibits women from teaching or assuming authority, yet the woman in 2 Samuel 20:16 assumes an authoritative role.
1 Timothy 2:12: But I suffer not a woman to teach, nor to usurp authority over the man, but to be in silence.