Contradiction with Exodus 14:14
This verse describes the Lord fighting for the Israelites, whereas 1 Samuel 7:11 depicts the Israelites themselves actively pursuing and defeating the Philistines.
Exodus 14:14: The LORD shall fight for you, and ye shall hold your peace.
Contradiction with 2 Chronicles 20:17
This verse advises standing still and seeing the salvation of the Lord, contrasting with the active pursuit and fighting shown in 1 Samuel 7:11.
2 Chronicles 20:17: Ye shall not [need] to fight in this [battle]: set yourselves, stand ye [still], and see the salvation of the LORD with you, O Judah and Jerusalem: fear not, nor be dismayed; to morrow go out against them: for the LORD [will be] with you.
Contradiction with Matthew 5:44
This verse encourages loving enemies and doing good, in contrast to the actions of Israelites pursuing and smiting the Philistines in 1 Samuel 7:11.
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;