Monogamy essential to domestic peace.
Every indication of God's will is a finger-post to felicity. A wise man will not wait for peremptory law. The faintest whisper of Jehovah's will is law to him. Without doubt, that each man should be the husband of one wife was the ordination of God.
I. THE FIRSTBORN SON IS PLACED IN A POSITION OF SPECIAL PRIVILEGE AND POWER. All human government is built upon the model of the family. Within the compass of the family the firstborn was a sovereign, had sovereign rule and responsibility. In families like Jacob's, where there were many children and dependents, this was a position of eminence and power. In every case, special duties devolve upon the firstborn. He has often to act as the representative of the family, and to defend family rights. He becomes the natural arbitrator in family disputes. His influence, for good or for evil, is great. Therefore, to sustain his position and power, a double portion of the ancestral estate was his.
II. THE PRIVILEGE OF THE FIRSTBORN IS INALIENABLE. For a time the firstborn son is sole heir to his father's rank and riches; hence, for reasons external to him, it would be unjust to depose him. And injustice always leads to strife, disorder, and mischief. Filial reverence would be undermined. Seeds of hatred would be sown. The removal of the father's authority by death would be the sign for feud, litigation, and waste. What God has ordained let not man disturb. Our earthly possessions are entrusted to us temporarily by God, and the entailment has been determined by the Divine Proprietor. For the just management of our secular estates and of our family concerns, we are accountable at the great assize. Favoritism among children is a prolific evil.
III. THIS PROSPECTIVE MISCHIEF ISSUES FROM A PLURALITY OF WIVES. God has often tolerated among men what he has not approved. He does this, in some respect, every day. If he had imposed capital punishment upon the violation of monogamy, the effect, in many cases, would have been unchastity. Law, in order to be effectual, can never transcend the highest level of moral sentiment prevalent in the age. Otherwise judges themselves would be culprits, and no one could be found to administer the law. But the family intrigues, quarrels, and miseries which spring from a plurality of wives are God's visible brands and scourges on disobedience. What works best for society, for the human race, is (in the absence of other instruction) the revealed will of God. Wherever there is more than one wife there must be divided affection, divided interests, divided authority. The house is divided against itself.—D.