Numbers 36:6
This is the thing which Yahweh does command concerning the daughters of Zelophehad, saying, Let them be married to whom they think best; only into the family of the tribe of their father shall they be married.
Genesis 24:57-58
They said, "We will call the young lady, and ask her."
Numbers 36:12
They were married into the families of the sons of Manasseh the son of Joseph; and their inheritance remained in the tribe of the family of their father.
Genesis 24:3
I will make you swear by Yahweh, the God of heaven and the God of the earth, that you shall not take a wife for my son of the daughters of the Canaanites, among whom I live.
2 Corinthians 6:14
Don't be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what fellowship has light with darkness?