c. 246–248 · Origen, Commentary on the Gospel of Matthew 14.24
After this our Saviour says, not at all permitting the dissolution of marriages for any other sin than fornication alone, when detected in the wife, “Whosoever shall put away his own wife, saving for the cause of fornication, maketh her an adulteress.” But it might be a subject for inquiry if on this account He hinders any one putting away a wife, unless she be caught in fornication, for any other reason, as for example for poisoning, or for the destruction during the absence of her husband from home of an infant born to them, or for any form of murder whatsoever.