Contradiction with 2 Samuel 7:16
This verse promises the establishment and eternal endurance of David's kingdom, which could be seen as contradictory to the ongoing battle scene and uncertainty depicted in 1 Samuel 17:19.
2 Samuel 7:16: And thine house and thy kingdom shall be established for ever before thee: thy throne shall be established for ever.
Contradiction with Matthew 5:44
1 Samuel 17:19 involves a battle against enemies, while this verse instructs to love enemies and pray for persecutors, presenting a different approach to conflict.
Matthew 5:44: But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
Contradiction with Romans 12:19
This verse advises against seeking revenge and leaving judgment to God, whereas 1 Samuel 17:19 is part of a narrative where conflict and warfare are central.
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.