Genesis 25:5-6 Abraham gave all he had to Isaac. But to the sons of his concubines Abraham gave gifts, and while he was still living he sent them away from his son Isaac, eastward to the east country.

In Genesis, God gives Abraham everything. He blesses him above all others. Yet Abraham clearly has concubines. Why doesn't God ever mention them, let alone chastise Abraham for having them? Does God support infidelity, promiscuity, sex slavery, and/or polygamy?