Abraham gave all he had to Isaac.
Genesis 25:5
"All that he had" doesn't mean Abraham's physical possessions because he counted his wealth as nothing. When we are all dead and turned to dust, Abraham's Covenant is the only thing we will still possess.
https://www.americantorah.com/....2016/11/23/the-only-
Genesis 25:6 indicates Abraham fathered children with at least two concubines, Hagar and Keturah. In the ancient Hebrew cultural context, a concubine was a wife with all the legal protections and obligations that implies, but she was also a purchased slave with all of the protections and obligations implied by that status. It was a lesser position than a free wife, but how good or bad life might be depended almost entirely on the local culture and the specific family. Just like everything else.
I don't think Keturah was the same person as Hagar. If Keturah was just another name for Hagar, then she was having children at over sixty years of age. It's more likely that they were two different women.
Abraham was 140 years old when Sarah died, and his marriage to Keturah appears to have happened after that. If so, then there was probably more than one hundred years age difference between them. Jacob had a significant age difference with his two wives, Rachel and Leah also. At least 40 years.
Those men lived much longer than we do, but that was still a pretty big gap. There's nothing morally wrong with a man marrying a much younger woman, depending on his health and how long he expects to live after the marriage. Any qualms we have are in our own minds and cultural prejudices.
When [the Holy Spirit] comes, he will convict the world concerning sin and righteousness and judgment: concerning sin, because they do not believe in me; concerning righteousness, because I go to the Father, and you will see me no longer; concerning judgment, because the ruler of this world is judged.
John 16:8-11
#yeshua came to call the Jews to repentance. He sent the Spirit to call the whole world. And how does the Spirit admonish the world concerning their sin if not through the lives and words of righteous, God-fearing people?
The natural extension of believing in Yeshua is obedience. If you don't obey the words of Jesus--not some nebulous Law of Jesus that nobody can define--then you don't believe. The Holy Spirit has no commandments of his own, but only teaches the commandments of God and convicts the world of disobedience to the commandments of Yeshua, which are the same as the commandments of God.
The holiday season is here and family and friends will get together to celebrate. This can be challenging in some situations because every family or group of friends or coworkers has that “one person” who likes to make things, exhausting. Proverbs 13:10, “ Arrogance leads only to strife, but wisdom is with the well-advised.” Remember that the way you might say something is just as important as what you say. There is no need to enable someone who enjoys creating conflict. Each person will respond differently when they realize that the rest of the gathering may not appreciate their approach to a certain point of view. Just be careful not to be that “one person.”