Exodus 34:16

Or take their daughters for your sons; for when their daughters give worship before their gods, they will make your sons take part with them.

Deuteronomy 7:3-4

Do not take wives or husbands from among them; do not give your daughters to their sons, or take their daughters for your sons.

1 Kings 11:2-4

The nations of which the Lord had said to the children of Israel, You are not to take wives from them and they are not to take wives from you; or they will certainly make you go after their gods: to these Solomon was united in love.

Ezra 9:2

For they have taken their daughters for themselves and for their sons, so that the holy seed has been mixed with the peoples of the lands; and in fact the captains and rulers have been the first to do this evil.

Nehemiah 13:25

And I took up the cause against them, cursing them and giving blows to some of them and pulling out their hair; and I made them take an oath by God, saying, You are not to give your daughters to their sons or take their daughters for your sons or for yourselves.

Numbers 25:1-2

Now when Israel was living in Shittim the people became false to the Lord, doing evil with the daughters of Moab:

Nehemiah 13:23

And in those days I saw the Jews who were married to women of Ashdod and Ammon and Moab:

2 Corinthians 6:14-17

Do not keep company with those who have not faith: for what is there in common between righteousness and evil, or between light and dark?

Treasury of Scripture Knowledge did not add

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain