'Whoredom' in the Bible

but I -- I say to you, that whoever may put away his wife, save for the matter of whoredom, doth make her to commit adultery; and whoever may marry her who hath been put away doth commit adultery.

'And I say to you, that, whoever may put away his wife, if not for whoredom, and may marry another, doth commit adultery; and he who did marry her that hath been put away, doth commit adultery.'