William... I unfortunately think that the very scripture you quoted goes against what you are saying. Jacob and Esau were both grandchildren of Abraham, yet one was elect and one was not.

We all want our family members to be saved, especially the kids, but I've been thru the Bible several times now and I don't see anything promising us that the Lord will save the families of the elect. I even have a theory that our desire to see our family members saved is how the practice of infant baptism came about. If your theology gets to a point where you believe water baptism will save your soul, then you can ensure your kid's salvation by having it done when they're small and can't object to it. I was reading earlier that infant baptism hasn't been the case since the very beginning of the church. At one point in early church history, the custom was actually the opposite; people waited until they were near death to be baptized. The reasoning was, baptism washes away all your sins, so you don't want to ruin it by having a lot of time and opportunity to sin afterwards.

I'm not pointing this out to be mean, but I personally have tried looking in scripture for something guaranteeing my spouse will eventually be saved, and I'm coming to the conclusion there's no such promise. The Lord is sovereign in salvation, not us.