And as you saw iron mixed with miry clay, they shall mingle themselves with the descendants of men: but they shall not hold one to another, even as iron is not mixed with clay.
And a mixed multitude went up also with them; and flocks, and herds, even very many cattle.
For they have taken of their daughters as wives for themselves, and for their sons: so that the holy race has mixed itself with the people of those lands: yea, the hand of the leaders and rulers has been foremost in this trespass.
But were mixed among the nations, and learned their works.
Ephraim, he has mixed himself among the people; Ephraim is a cake not turned.
Now it came to pass, when they had heard the law, that they separated from Israel all the mixed multitude.
2 Corinthians 6:14
Be you not unequally yoked together with unbelievers: for what fellowship has righteousness with unrighteousness? and what partnership has light with darkness?
And a mixed race shall dwell in Ashdod, and I will cut off the pride of the Philistines.