Contradiction with Exodus 20:13
"Thou shalt not kill." Judges 18:2 involves the Danites seeking a land, which later leads to violence and killing, contradicting the commandment not to kill.
Exodus 20:13: Thou shalt not kill.
Contradiction with Joshua 13:1
Joshua is instructed that the land is divided among the tribes, yet Judges 18:2 has the Danites looking for an inheritance because they had not received their portion, contradicting the notion that the land distribution was complete.
Joshua 13:1: Now Joshua was old [and] stricken in years; and the LORD said unto him, Thou art old [and] stricken in years, and there remaineth yet very much land to be possessed. [to...: Heb. to possess it]
Contradiction with Deuteronomy 7:1-2
God commands the Israelites to completely destroy certain nations when taking over their land, yet in Judges 18:2 the Danites send spies and negotiate rather than follow the complete destruction rule.
Deuteronomy 7:1-2: When the LORD thy God shall bring thee into the land whither thou goest to possess it, and hath cast out many nations before thee, the Hittites, and the Girgashites, and the Amorites, and the Canaanites, and the Perizzites, and the Hivites, and the Jebusites, seven nations greater and mightier than thou;
Contradiction with Joshua 19:40-47
Describes the land inheritance of the Danites, contradicting Judges 18:2 where the Danites claim they have no inheritance and seek another territory.
Joshua 19:40-47: [And] the seventh lot came out for the tribe of the children of Dan according to their families.