Abraham had taken another wife, whose name was Keturah. 2 She bore him Zimran, Jokshan, Medan, Midian, Ishbak and Shuah. 3 Jokshan was the father of Sheba and Dedan; the descendants of Dedan were the Ashurites, the Letushites and the Leummites. 4 The sons of Midian were Ephah, Epher, Hanok, Abida and Eldaah. All these were descendants of Keturah.
5 Abraham left everything he owned to Isaac. 6 But while he was still living, he gave gifts to the sons of his concubines and sent them away from his son Isaac to the land of the east. Genesis 25:1-6
Even before Abraham died, Abraham’s family was growing quickly. With every child and grandchild, Abraham had to be beaming with joy and gratefulness.
Despite the number of children Abraham had with other women, Isaac was still favored and blessed by God. He wasn’t Abraham’s first, but he was the promised one.
I suspect Abraham sent the concubines and children away was because of how much he favored Isaac. It’s similar to Joseph and his brothers. They were all jealous of Joseph so they actively plotted against him. Isaac’s siblings and their mothers were probably just as jealous.
Again, we see the patriarch Abraham favoring one at the expense of the others. The others never stood a chance. It was totally not fair for the others to be treated that way, but no one was ever promised fairness, despite all those who have tried.
Perhaps you’re feeling the sting of unfairness. We all face it some times. What matters is our response. We can certainly become bittre and take it out on those we love. We could fight it. Or we can acknowledge it, give it over to God and be free from the bitterness. Of course that means we’ll have to give it over to Him often because, despite our greatest efforts, we hang onto this unfairness long after we should. After enough time has passed, we can then wonder what all the fuss was about.
God can help you heal from the unfairness as we give it over to Him as many times as is necessary.