Contradiction with Matthew 6:16
While 2 Samuel 3:35 describes David refusing to eat until the sun goes down as a sign of mourning, Matthew 6:16 advises not to show outward signs of fasting to be seen by others.
Matthew 6:16: Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward.
Contradiction with Ecclesiastes 9:7
2 Samuel 3:35 depicts David choosing not to eat, whereas Ecclesiastes 9:7 encourages enjoying meals with a joyful heart.
Ecclesiastes 9:7: Go thy way, eat thy bread with joy, and drink thy wine with a merry heart; for God now accepteth thy works.
Contradiction with Mark 7:18-19
In 2 Samuel 3:35, David abstains from food, but Mark 7:18-19 teaches that all foods are clean and permissible to eat, emphasizing freedom rather than restriction.
Mark 7:18-19: Because it entereth not into his heart, but into the belly, and goeth out into the draught, purging all meats?
Contradiction with 1 Timothy 4:3-4
David’s refusal to eat in mourning in 2 Samuel 3:35 contrasts with 1 Timothy 4:3-4, which criticizes abstaining from foods created to be received with thanksgiving.
1 Timothy 4:3-4: Forbidding to marry, [and commanding] to abstain from meats, which God hath created to be received with thanksgiving of them which believe and know the truth.
Contradiction with Isaiah 22:12-13
2 Samuel 3:35 highlights abstaining as an act of mourning, whereas Isaiah 22:12-13 criticizes those who eat and drink during times intended for mourning.
Isaiah 22:12-13: And in that day did the Lord GOD of hosts call to weeping, and to mourning, and to baldness, and to girding with sackcloth: