Why did God tolerate polygamy in the Old Testament?

In the garden of Eden monogamy was clearly the God-instituted ideal. Noah of the Great Flood story had only one wife as did his sons. Abraham the first major patriarch and founder of the Israelites had one wife but also had sexual relations with her maid, an Egyptian slave. Abraham and Sara's son, Isaac, had only one wife. Jacob, his second-born son had two official wives but also had to concubines which were both servants of each of his two wives. Moses had only one wife.  King David had countless wives and concubines as did his son Solomon. Elkanah, the prophet Samuel's father had two wives. Joseph had only one wife. Job had only one wife. Some major Biblical figures such as Elijah, Elisha and Daniel may or may not have had a wife even of any kind. Jeremiah  was told not to marry by God. 

God blessed them and used them in diverse ways to be a blessing to humanity. The polygamists were equally blessed as were those who preferred monogamous marriages. No explanation was given as to why these patriarchs were not punished for engaging in polygamy, a practice that has fallen out of fashion in the western world.

Christ Jesus on the other hand never married. The apostle Paul encouraged his readers and fellow Christians to choose celibacy if at all possible.

Free Will and the Eradication of Sin at the Second Coming

A million years post-Second Coming will it be impossible to break God’s law and sin in an otherwise perfect, sinless universe ? Since we have God-given free will won’t it be theoretically possible to break Gods law thus rebooting the power struggle between Good and evil again?

Let’s hope goodness and loyalty to God’s Laws of Life endure ad infinitum but if Evil and rebellion against God’s control of his beautiful creation reappear would Jesus Christ or another member of the Triune Godhead sacrifice himself on a future—newly created—Garden of Eden inhabited by an artless ‘Adam and Eve’ couple to once again restore order to our universe?

Humanity Awaits Jesus Christ's Parousia in a Twenty-Second Century Starship

 "The  Parousia or Second Coming is a Christian, Islamic as well as Baha'i belief that Jesus will return again after his ascension to heaven about two thousand years ago. The idea is based on messianic prophecies and is part of most Christian eschatologies." Wikipedia

At the end of the twenty-first century violence on Earth has virtually decimated the population and a remnant of its best thinkers leave Earth in hope of meeting the returning divine-human creator since waiting for Him on Earth is no longer a viable option.

The end of all things is upon us

The End is near. Pack your bags. We're going Home. The Second Coming of Jesus Christ is closer than you think.

Why is evil more appealing than goodness?

 How peculiar that in the Bible and in day-to-day life evil is more attractive, more appealing and occurring more often than goodness in the Bible. You read about brothers killing each other, and brothers raping their sisters, and I’ve always wondered why if good manners and right living is ethically and philosophically more beneficial to those around you and to one self, why—especially in the Bible—but also in real life, you encounter evil more frequently. This is very perplexing. It’s always amazing that—as they are called—our first parents, Adam and Eve—that their firstborn son named Cain, who was able to communicate with God at the entrance to the garden of Eden yet killed his brother for a paltry reason like being jealous of his brother’s sacrifice of a lamb to God just because  God was pleased with his brother Abel, but not with Cain’s  sacrifice, a burnt offering, of just vegetables that he had harvested himself. It’s always been very perplexing.

Another thing that always disturbs me is that, again, if goodness is so superior and producing better results and contributing to a peaceful and more desirable society, why most of humanity—except Noah and his family—were destroyed by the Flood along with all the innocent animals, because more people had elected evil and wrongdoing and selfishness instead of an altruistic, mutually beneficial method of living? That is very perplexing

Perhaps I am missing some very basic, and not so obvious explanation for the preponderance of evil, as opposed to goodness and virtue and good living in the  Bible stories, and in world history. It would’ve been more understandable if only half of humanity would  have been destroyed by drowning in the account of the Flood destruction of most of humanity—a kind of genocide, really. If you think about it, why is it that most of the world’s population at the time of the biblical Flood didn’t tend towards a good, honest and productive living as opposed to evil? The destruction of 50 percent of an evil population compared to 50 percent of a good and virtuous population would have made more sense, but the story in the book of Genesis says that only eight people were saved from all of the millions that were alive at the time of the flood story.