Genesis 24:3

3that I may make you swear by the Lord, the God of heaven and God of the earth, that ayou will not take a wife for my son from the daughters of the Canaanites, among whom I dwell,

Genesis 27:46

46Then Rebekah said to Isaac, b“I loathe my life because of the Hittite women.
Hebrew daughters of Heth
dIf Jacob marries one of the Hittite women like these, one of the women of the land, what good will my life be to me?”

Exodus 34:16

16and you take of etheir daughters for your sons, and their daughters fwhore after their gods and make your sons whore after their gods.

Deuteronomy 7:3-4

3 gYou shall not intermarry with them, giving your daughters to their sons or taking their daughters for your sons, 4for they would turn away your sons from following me, to serve other gods. hThen the anger of the Lord would be kindled against you, and he would destroy you iquickly.

Joshua 23:12-13

12For if you turn back and cling to the remnant of these nations remaining among you jand make marriages with them, so that you associate with them and they with you, 13know for certain that kthe Lord your God will no longer drive out these nations before you, lbut they shall be a snare and a trap for you, a whip on your sides and thorns in your eyes, until you perish from off this good ground that the Lord your God has given you.

Ezra 9:1-2

Ezra Prays About Intermarriage

1After these things had been done, the officials approached me and said, “The people of Israel and the priests and the mLevites have not separated themselves from the peoples of the lands nwith their abominations, from the oCanaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites. 2 pFor they have taken some of their daughters to be wives for themselves and for their sons, so that the qholy race
Hebrew offspring
has smixed itself with the peoples of the lands. And in this faithlessness the hand of the officials and chief men has been foremost.”

Ezra 9:12

12 tTherefore do not give your daughters to their sons, neither take their daughters for your sons, and never seek their peace or prosperity, that you may be strong and eat the good of the land uand leave it for an inheritance to your children forever.’
Copyright information for ESV