Numbers 36:6
This is what the LORD commands concerning the daughters of Zelophehad, 'Let them marry whom they think best, only they shall marry within the clan of the tribe of their father.
Genesis 24:57-58
They said, "Let us call the young woman and ask her."
Numbers 36:12
They were married into the clans of the people of Manasseh the son of Joseph, and their inheritance remained in the tribe of their father's clan.
Genesis 24:3
that I may make you swear by the LORD, the God of heaven and God of the earth, that you will not take a wife for my son from the daughters of the Canaanites, among whom I dwell,
2 Corinthians 6:14
Do not be unequally yoked with unbelievers. For what partnership has righteousness with lawlessness? Or what fellowship has light with darkness?