Hmm, stoning people to death was also done in the Bible.
Yes polygamy was practiced in the Old Testement.
But Jesus taught against it. So who do you choose to believe? Jesus or the Old Testement?
Let's see, that is an interesting question. Are you saying the Old Testament is innacurate/wrong? Your question could also be worded, "So who do you choose to believe? Jesus or Jesus?"
That is mighty deep thinking for a Thursday evening.
So, Jesus taught against his own commandment? In other words He commanded men to do that which was contrary to His will? Or are you just saying that Jesus changed His mind? Perhaps you believe that Jesus is not the God of the Old Testament.
Please elaborate. Your wisdom so far has been express and, well, dizzying.