Contradiction with Exodus 34:16
Exodus 34:16 contradicts Genesis 34:17 by warning against intermarriage with other nations to prevent idolatry, whereas Genesis 34:17 implies a willingness to intermarry with the Shechemites if they comply with circumcision.
Exodus 34:16: And thou take of their daughters unto thy sons, and their daughters go a whoring after their gods, and make thy sons go a whoring after their gods.
Contradiction with Deuteronomy 7:3
Deuteronomy 7:3 contradicts Genesis 34:17 by explicitly forbidding intermarriage with other nations to maintain Israel's purity, whereas Genesis 34:17 allows for intermarriage with stipulations.
Deuteronomy 7:3: Neither shalt thou make marriages with them; thy daughter thou shalt not give unto his son, nor his daughter shalt thou take unto thy son.
Contradiction with Joshua 23:12-13
Joshua 23:12-13 contradicts Genesis 34:17 by warning Israel not to associate with other nations through marriage, while Genesis 34:17 agrees under the condition of circumcision.
Joshua 23:12-13: Else if ye do in any wise go back, and cleave unto the remnant of these nations, [even] these that remain among you, and shall make marriages with them, and go in unto them, and they to you:
Contradiction with 1 Kings 11:2
1 Kings 11:2 contradicts Genesis 34:17 by stating that God had commanded Israelites not to intermarry with foreign nations, which is permitted in Genesis 34:17 under certain conditions.
1 Kings 11:2: Of the nations [concerning] which the LORD said unto the children of Israel, Ye shall not go in to them, neither shall they come in unto you: [for] surely they will turn away your heart after their gods: Solomon clave unto these in love.
Contradiction with Ezra 9:12
Ezra 9:12 contradicts Genesis 34:17 by advising Israelites not to seek the peace or prosperity of foreign peoples through marriage, whereas Genesis 34:17 suggests acceptance if circumcision is followed.
Ezra 9:12: Now therefore give not your daughters unto their sons, neither take their daughters unto your sons, nor seek their peace or their wealth for ever: that ye may be strong, and eat the good of the land, and leave [it] for an inheritance to your children for ever.
Contradiction with Nehemiah 13:25-27
Nehemiah 13:25-27 contradicts Genesis 34:17 by condemning intermarriage with foreigners due to the negative spiritual influence, unlike the conditional acceptance in Genesis 34:17.
Nehemiah 13:25-27: And I contended with them, and cursed them, and smote certain of them, and plucked off their hair, and made them swear by God, [saying], Ye shall not give your daughters unto their sons, nor take their daughters unto your sons, or for yourselves. [cursed: or, reviled]