Judges 3:6

And they took their daughters to be their wives, and gave their daughters to their sons, and served their gods.

Exodus 34:16

And you take of their daughters unto your sons, and their daughters go play the harlot after their gods, and make your sons go play the harlot after their gods.

Deuteronomy 7:3-4

Neither shall you make marriages with them; your daughter you shall not give unto his son, nor his daughter shall you take unto your son.

1 Kings 11:1-5

But king Solomon loved many foreign women, together with the daughter of Pharaoh, women of the Moabites, Ammonites, Edomites, Sidonians, and Hittites;

Ezra 9:11-12

Which you have commanded by your servants the prophets, saying, The land, unto which you go to possess it, is an unclean land with the filthiness of the people of the lands, with their abominations, which have filled it from one end to another with their uncleanness.

Nehemiah 13:23-27

In those days also saw I Jews that had married wives of Ashdod, of Ammon, and of Moab:

Ezekiel 16:3

And say, Thus says the Lord GOD unto Jerusalem; Your birth and your nativity are from the land of Canaan; your father was an Amorite, and your mother a Hittite.

Treasury of Scripture Knowledge

Summary

And they took their daughters to be their wives, and gave their daughters to their sons, and served their gods.

Bible References

General references

Exodus 34:16
And you take of their daughters unto your sons, and their daughters go play the harlot after their gods, and make your sons go play the harlot after their gods.
Deuteronomy 7:3
Neither shall you make marriages with them; your daughter you shall not give unto his son, nor his daughter shall you take unto your son.
1 Kings 11:1
But king Solomon loved many foreign women, together with the daughter of Pharaoh, women of the Moabites, Ammonites, Edomites, Sidonians, and Hittites;
Ezra 9:11
Which you have commanded by your servants the prophets, saying, The land, unto which you go to possess it, is an unclean land with the filthiness of the people of the lands, with their abominations, which have filled it from one end to another with their uncleanness.
Nehemiah 13:23
In those days also saw I Jews that had married wives of Ashdod, of Ammon, and of Moab:
Ezekiel 16:3
And say, Thus says the Lord GOD unto Jerusalem; Your birth and your nativity are from the land of Canaan; your father was an Amorite, and your mother a Hittite.