"It hath been written, that whosoever shall put away his wife, let him give her a writing of divorcement. Verily, verily, I say unto you, that whosoever shall put away his wife, saving for the cause of fornication, causeth her to commit adultery; and whoso shall marry her who is divorced committeth adultery."
First and foremost, this is a verse dealing with male conduct. The verse is masculine in orientation and word usage, and deals with a male's prerogative under the law that existed then. So applying this new, higher law, beyond that is not warranted, as will be more clearly seen in the discussion below.
The ease with which a divorce could be granted made the serious nature of the act unappreciated. Today it is still unappreciated. Divorce rates among Latter-day Saints have risen to practically mirror the population at large. We follow all the surrounding social trends, but are a little slower in getting there. We are not "peculiar" any longer. We are just slower.
Christ was re-enshrining the significance of marriage. It should not be easy to end a marriage. But, then again, perhaps the kind of marriage Christ is speaking of is one of a higher order and rarely exists here.
Although there are reasons for every marriage to be treated as sacred and worth preserving, it was always intended for there to be a higher purpose in marriage. It was intended to be an eternal union, inside of which sacred acts mirroring heaven itself take place. Bringing into this world new life by the loving union of two partners is a mirror of heaven. Such things are, or ought to be, most sacred.
But a higher kind of union, where love is the prevailing rule, is not often established here. More often than not, the marriages of this world are corrupted, just as society itself is corrupted.
I hardly dare offer a different view of these verses, because people think they know what they're reading in them. I'm not sure we have ever seen what Christ is actually speaking about. Though caution would suggest otherwise, I'm going to go ahead with offering a different view.
First, this is always interpreted to be discussing things which are coarse or material, but it comes immediately following a discussion about the inner or spiritual self. This suggests our normal reading of this language may be incorrect. When the focus of Christ's new and higher law is the inner man, then to read this as applying to outward behavior (fornication/adultery) may miss the point.
Second, notice the contrast between the only justified reason for terminating the marriage (fornication) and the subsequent results (adultery). Two different words are used, suggesting two different meanings are present.
I've consulted with John Hall about the New Testament language in the Matthew account of this sermon, where "porneia" is the typical rendering. There the meaning of the first word which we render "fornication" could be a variety of things including: prostitution, sexual permissiveness or merely a sexual act. But, if the word was "poneria" then it could, by broad measure, mean bad acts (with no sexual connotation at all).
There is a possibility that the correct way to read this could be rendered in this way: "Whoever puts away his wife for any reason other than the lack of marital intimacy..." That would mean the only justified reason to end the marriage is that the marriage has ended within the heart. There is no longer any love in the relation. It has died. It is no longer worthy of preservation, and therefore, the death of the heart justifies the death of the relation.
However, the focus is on the woman's heart. That is, if the woman still retains marital intimacy for the husband, he cannot be justified in putting her away. He is obligated to retain as his wife the woman who loves him. If he puts away such a wife, then he causes her to commit adultery.
This, then, raises the issue of the meaning of adultery. We tend to view it as a physical act involving sexual union with another. But adultery also holds the connotation of unfaithfulness, as in Israel becoming unfaithful and playing the part of an adulteress, worshiping other gods. (See, e.g., Jeremiah 3: 8.) When forced away by the man she loves, a woman is then "adulterated" by the act of the man. He is accountable for the treachery involved in dissolving the marriage which the woman wanted, and forcing her into the relation with either no one, or with another man. Either one is "adulterating" the marriage which she had with him. He is accountable for that uncharitable, unkind, and unjustified treatment of the woman.
On the other hand, when she has lost affection for him, and the union has become hollow and without love, then the marriage is dead and continuation of the relation is a farce. It is not a marriage. In fact, it is a pretense and an abomination unworthy of preservation. It will not endure. It is not eternal and not possible to preserve beyond the grave.
No union that has not been sealed by the Holy Spirit of Promise will endure beyond the grave. (See D&C 132: 7, 18, among other places.) The reason for sealing such a marriage by the promise of the Spirit is because it replicates the kind of holy union found in heaven. It is like unto the unions between gods and goddesses. It is worthy of preservation because it is eternal. It is enduring. It is worth preserving into all eternity. It is sealed because the gods recognize on the earth a mirror of what is found in heaven itself. Therefore heaven ratifies and approves the relationship. They do not create such relations in heaven, but instead recognize them here, and approve them for eternal duration. Without such a relationship, the parties are worthy of continuation as angels, but not as spouses, as Christ would put it elsewhere. (Matt. 22: 30; see also D&C 132: 17.)
It is true enough that the restored Gospel allows everyone the opportunity to come to the Temple and receive ordinances which hold the promise of an eternal union. But those are relationships where the parties are on probation. They are given as an opportunity to work out your salvation before God. They are given so that if you are true and faithful, the time may come when you are called up and chosen by the Holy Spirit of Promise to be kings and queens, priests and priestesses, whereas now you are only given opportunity to prove yourself worthy to become such.
There are many unhappy Latter-day Saint marriages which exist in name only. The notorious high record use of anti-depressants by women in Utah is driven in large part by unhappy marriages they believe ought to be preserved because of a misunderstanding of these verses. Yet the underlying reality that the union causes suffering rather than rejoicing cannot be escaped. So they alter their natural reaction to the unhappy union by altering the brain with chemicals. Such a marriage cannot endure into eternity. Though the woman may sacrifice herself to preserve her heart's desire to be a faithful, married mother, her unworthy marriage is not what will endure. It cannot be sealed by the Holy Spirit of Promise, though she may be otherwise qualified.
Now, to be clear, I do not advocate divorce, particularly where minor children are involved. But I do advocate a higher view of the marital union where the prevailing reason for the union is love. This should be the whole preparation for marriage. Before contracting the union, the parties should look for that spouse with whom they can find heaven on earth. Unhappy marriages might all be saved if the parties would repent. The higher ideal is not impossible for any union to seek and find. That is the right of every party here, if they will but seek after it. If however, after every effort has been made to both find, and cultivate such a union, it proves to be an impossibility, then the parties ought to use the precious time allotted to them in mortality to find a union which will be worthy of continuation. Not at the expense of their children, who are entitled to have both parents raise them. The Holy Spirit of Promise was intended to be shed upon many marriages, rather than a comparative few. Happiness was the design of our creation. When we avoid it by our misconduct and foolishness, we do not please heaven. Nor does gritting our teeth, putting up with miserable relationships, and enduring an unholy union please heaven or merit some eternal reward.
These words of Christ are speaking of a higher way to conduct our lives. To read into them exclusively outward behavior, when the whole import of the sermon addresses the inner-man, is out of context. I think we hardly understand the Lord's meaning. But, then again, perhaps it is best if we do not understand His full meaning until we are ready to see for ourselves what great things the Lord has in store for those who love Him. (D&C 76: 114-117.) Perhaps it is best that man is not capable of making them known.
Now, as to the woman, there is another standard. He does not articulate it here, but can be found throughout scripture. A woman's love of and fidelity to her husband is more often than not a product of her nature. It takes quite a fool to turn a wife's natural affection for him into distrust and bitterness. But there are churlish men, as we know from scripture. Sometimes they marry an Abigail. (See 1 Sam. 25: 3.)