Bible Verses About marrying kin

Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.

Thou shalt have no other gods before me.

None of you shall approach to any that is near of kin to him, to uncover their nakedness: I am the LORD.

Marriage is honourable in all, and the bed undefiled: but whoremongers and adulterers God will judge.