18. See Matthew 19:9, &c., where the words of this verse uttered absolutely, and without any exception, in reference to the re-marriage of any whose repudiated wife may still live, are adduced in proof of the Catholic doctrine, which teaches, that such re-marriages are invalid; that the partiesso united are guilty of adultery by cohabitation. The words here recorded by St. Luke would be absolutely false, if adultery or any other cause should dissolve the vinculum of the marriage of Christians once