I would like to take note of another pericope that the LCR document fails to take into account. It is one more instance of the Lord's Word on the matter and it furthermore offers a serious challenge to the comment on the last post that is mentioned above.
And this second thing you do. You cover the LORD's altar with tears, with weeping and groaning because he no longer regards the offering or accepts it with favor from your hand. But you say, "Why does he not?" Because the LORD was witness between you and the wife of your youth, to whom you have been faithless, though she is your companion and your wife by covenant. Did he not make them one, with a portion of the Spirit in their union? And what was the one God seeking? Godly offspring. So guard yourselves in your spirit, and let none of you be faithless to the wife of your youth. "For the man who hates and divorces, says the LORD, the God of Israel, covers his garment with violence, says the LORD of hosts. So guard yourselves in your spirit, and do not be faithless. Malachi 2: 13-16 (ESV)
And what was the One God seeking from marriages some 1400 years after Jacob during the time of Malachi? He was still seeking Godly offspring. He was still looking for His people to be fruitful and multiply. Adam and Eve have accomplished the starting of the human race. Noah and his wife have replenished the earth. And Jacob and family have successfully given rise to the Lord's promised Israel. Yet the Lord still wants more Godly offspring here in Malachi. As a brother once said, "Now, that MIGHT be just a coincidence, but I find it hard to believe in coincidences that big."
We can draw a line after the patriarchs of the faith and declare that the command to be fruitful and multiply has been fulfilled. Yet to do so we would have to ignore the Lord's clear word on the topic as it comes to us from Malachi (and elsewhere). We can even join some in liberal bastions throughout the church who commend us to simply look at the world around us and see that we have sufficiently multiplied, subdued, and filled the eath. It certainly would be another line we could draw between us and the Lord's clear word to "be fruitful and multiply." Unfortunately, to do so is to draw a line between the Lord and us - the fruits of His Gospel.