Nehemiah 10:30

and that we will not give our daughters to the peoples of the land or take their daughters for our sons.

Exodus 34:16

and you might take some of his daughters for your sons, and his daughters might play the harlot with their gods and cause your sons also to play the harlot with their gods.

Deuteronomy 7:3

Furthermore, you shall not intermarry with them; you shall not give your daughters to their sons, nor shall you take their daughters for your sons.

Ezra 9:1-3

Now when these things had been completed, the princes approached me, saying, “The people of Israel and the priests and the Levites have not separated themselves from the peoples of the lands, according to their abominations, those of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians and the Amorites.

Ezra 9:12-14

So now do not give your daughters to their sons nor take their daughters to your sons, and never seek their peace or their prosperity, that you may be strong and eat the good things of the land and leave it as an inheritance to your sons forever.’

Ezra 10:10-12

Then Ezra the priest stood up and said to them, “You have been unfaithful and have married foreign wives adding to the guilt of Israel.

Treasury of Scripture Knowledge

Summary

And that we would not give our daughters unto the people of the land, nor take their daughters for our sons:

Bible References

General references

Exodus 34:16
and you might take some of his daughters for your sons, and his daughters might play the harlot with their gods and cause your sons also to play the harlot with their gods.
Deuteronomy 7:3
Furthermore, you shall not intermarry with them; you shall not give your daughters to their sons, nor shall you take their daughters for your sons.
Ezra 9:1
Now when these things had been completed, the princes approached me, saying, “The people of Israel and the priests and the Levites have not separated themselves from the peoples of the lands, according to their abominations, those of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians and the Amorites.
Ezra 10:10
Then Ezra the priest stood up and said to them, “You have been unfaithful and have married foreign wives adding to the guilt of Israel.