From Mark; Chapter 10:
[9] And I say to you, that whosoever shall put away his wife, except it be for fornication, and shall marry another, committeth adultery: and he that shall marry her that is put away, committeth adultery.
You guys are always so full of deception...
Here's your Catholic bible by Jerome...Reads the same as Luther's bible...
Matthew 19:9
(DOUAYRHEIMS)
9 And I say to you, that whosoever shall put away his wife, except it be for fornication, and shall marry another, committeth adultery: and he that shall marry her that is put away, committeth adultery.
The porneia referred to is anterior to the union in question: our Lord is saying one may leave a spouse whose unchastity is discovered to have been to a degree that throws into doubt his/her intention to commit to a permanent and exclusive union.