Contradiction with Matthew 5:39
This verse promotes turning the other cheek and not resorting to violence, whereas 1 Samuel 21:9 involves discussing a weapon, suggesting the use of force.
Matthew 5:39: But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.
Contradiction with Exodus 20:13
This verse is the commandment "Thou shalt not kill," contrasting with the implied readiness for battle or violence in 1 Samuel 21:9 where a weapon is given.
Exodus 20:13: Thou shalt not kill.
Contradiction with Isaiah 2:4
This verse talks about turning swords into plowshares and not learning war anymore, in contrast to the focus on possessing a weapon in 1 Samuel 21:9.
Isaiah 2:4: And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword against nation, neither shall they learn war any more. [pruninghooks: or, scythes]
Contradiction with Romans 12:19
This verse advises against seeking personal vengeance, contrasting the implied preparation for battle or defense in 1 Samuel 21:9.
Romans 12:19: Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord.
Paradox #1
Some people see a contradiction related to the timing and presence of Goliath's sword. In 1 Samuel 17, David used a sling to defeat Goliath, and it's not explicitly mentioned what happened to Goliath's sword until later in 1 Samuel 21. This might raise questions about when and how David gained possession of the sword. However, different interpretations and contextual understandings can explain the timeline and details.