I've noticed in some other discussions dealing with the relationship between the Covenants, specifically regarding the validity of baptizing households, that often the question arises as to how the saints in the Old Covenant were dealt with by God. Let me be as transparent as possible. I was raised generic Baptist and have been trying, yes actively seeking, to become a Presbyterian. Perhaps I still have an immature view of Covenant Theology that hinders me from getting behind either approach, that of the Baptist or Presbyterian. Here's my question: If we say that the saints in the Old Covenant also had the Spirit, or the law on both their hearts and minds, then how is the New Covenant any different than the old? Why does the author of Hebrews make the case that God found fault with the people of the Old Covenant, and so He decides to make a New Covenant where He will put His law on their minds and hearts, if that was the way the Old Covenant had worked as well? (What good would a New Covenant be if all that changed was from a "snip" to a "splash"?) I can see why the Baptists want to make a distinction, only Baptizing those who profess faith, but there really is the problem of it being based only on a profession and the infamous "regeneration goggles". I can also see the pull of Presbyterians and the idea that both professors and the elect are a part of the New Covenant, especially in light of the warnings against apostasy in the book of Hebrews. I've many other questions, but if someone could help me out here I'd really appreciate it. TL;DR: How does the New Covenant accomplish Hebrews 8:10? Also, don't hijack this thread David.