Contradiction with Matthew 5:9
Judges 9:50 depicts conflict and siege, while Matthew 5:9 promotes peace, stating "Blessed are the peacemakers."
Matthew 5:9: Blessed [are] the peacemakers: for they shall be called the children of God.
Contradiction with Romans 12:18
Judges 9:50 involves aggression and warfare, whereas Romans 12:18 advises to live peaceably with all men, if possible.
Romans 12:18: If it be possible, as much as lieth in you, live peaceably with all men.
Contradiction with Exodus 20:13
Judges 9:50 is part of a narrative about conflict and potential killing, contradicting Exodus 20:13's commandment "Thou shalt not kill."
Exodus 20:13: Thou shalt not kill.
Contradiction with Matthew 26:52
Judges 9:50 describes a siege, suggesting violence, while Matthew 26:52 warns that all who take the sword will perish by the sword.
Matthew 26:52: Thinkest thou that I cannot now pray to my Father, and he shall presently give me more than twelve legions of angels?
Contradiction with Proverbs 3:31
Judges 9:50 includes themes of violence, contrasting with Proverbs 3:31 advising not to envy or choose the ways of violent men.
Proverbs 3:31: Envy thou not the oppressor, and choose none of his ways. [the oppressor: Heb. a man of violence]