Abraham gave everything he owned to Isaac, but gave gifts to his other sons and sent them to live in the east, away from Isaac. (I guess he didn’t want a Cain/Abel situation.)
Remember, Abraham was 99 when he had his foreskin cut off.
Then Sarai said to Abram “This is all your fault! I let you sleep with my servant and now she treats me with contempt. God will show you who’s wrong – you or me.” The first episode of Jerry Springer was filmed. They already knew who the father was, so Maury was nixed.