Good morning family, getting some reading in and would like to get a better understanding from some of my more mature brothers and sisters scripturally. Reading Genesis got to chapter 29 and backed up because it got confusing. Trying to read with understanding so I may throw questions in here so I can learn more deeply.

First question. Why and how can someone giveaway their birthright? Is this a spiritual birthright? Or just an inheritance? Genesis 25 V 29-34. Ya’aqov is after Esau’s birthright and even their mother conspires against Esau. (So sad that a mother would do this to rob one child to give to another)

Second question. Chpt 26 end of V8 (Yitchaq was sporting with his woman (there is a symbol here) that means ( the first and the last, the beginning and the end) why is this symbol placed here? Does it symbolize Yahuah? And what does (sporting) mean? I’m thinking sporting mean just showing her off maybe.

Third question. Please help me understand why after Yitschaq was deceived by Ya’aqov and took Esau’s blessing why it can’t be recanted. Why can’t he rebuke Ya’aqov for the deception and still bless Esau?

A lot of shady stuff going on here. Thank you to all for the help.