Genesis 2:23-25

Young's Literal Translation

²³ and the man saith, `This [is] the [proper] step! bone of my bone, and flesh of my flesh!' for this it is called Woman, for from a man hath this been taken;

²⁴ therefore doth a man leave his father and his mother, and hath cleaved unto his wife, and they have become one flesh.

²⁵ And they are both of them naked, the man and his wife, and they are not ashamed of themselves.