Contradiction with Deuteronomy 7:3
This verse instructs the Israelites not to marry foreigners, which contradicts Esther, a Jewish woman, marrying a Persian king.
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 2 Corinthians 6:14
Advises against being unequally yoked with unbelievers, contrasting Esther marrying King Ahasuerus, who was not of her faith.
2 Corinthians 6:14: Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
Contradiction with Genesis 24:3-4
Abraham instructs his servant to find a wife for Isaac from his kindred, specifically avoiding Canaanites, conflicting with Esther's marriage outside her people.
Genesis 24:3-4: And I will make thee swear by the LORD, the God of heaven, and the God of the earth, that thou shalt not take a wife unto my son of the daughters of the Canaanites, among whom I dwell:
Contradiction with Nehemiah 13:25
Nehemiah condemns intermarriage with foreigners and takes action to prevent it, in contrast to the acceptance of Esther's marriage to the king.
Nehemiah 13:25: 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]
Contradiction with Ezra 9:12
Warns against giving daughters to foreign sons or taking foreign daughters for sons, which contradicts Esther's marriage to King Ahasuerus.
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.